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| Index to Form 10-Q                                                                                                                                                        | Page   |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|
|                                                                                                                                                                                          |        |
| Part I - Consolidated Financial Information                                                                                                                     |   |
|    Item 1 - Financial Statements (Unaudited)                                                                                                     |   |
|       Consolidated Balance Sheet as of December 31, 2010 and June 30, 2011                          | 3      |
|       Consolidated Income Statement for Three and Six Months Ended June 30, 2010 and 2011 | 4      |
|       Consolidated Cash Flow Statement for Six Months Ended June 30, 2010 and 2011             | 5      |
|       Notes To Consolidated Financial Statements                                                                                       | 6      |
|    Item 2 - Management's Discussion and Analysis of Operating Results and Financial Condition                 | 9      |
|    Item 3 - Quantitative and Qualitative Disclosures About Market Risk                                                       | 10     |
|    Item 4 - Controls and Procedures                                                                                                              | 10     |
| Part II - Other Information                                                                                                                                          |   |
|    Item 1 - Legal Proceedings                                                                                                                         | 11     |
|    Item 1A - Risk Factors                                                                                                                             | 11     |
|    Item 2 - Unregistered Sales of Equity Securities and Use of Proceeds                                            | 11     |
|    Item 3 - Defaults Upon Senior Securities                                                                                                 | 11     |
|    Item 4 - (Removed and Reserved)                                                                                                               | 11     |
|    Item 5 - Other Information                                                                                                                         | 11     |
|    Item 6 - Exhibits                                                                                                                                       | 12     |
| Signatures                                                                                                                                                                               | 12     |

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|                                                                     | Dec 31, 2010 | Jun 30, 2011 |
|--------------------------------------------------------------------------|------------------------|------------------------|
|                                                                     |                        |                        |
| Cash and equivalents                                           | $97,789,985            | $56,362,490            |
| Marketable securities                                               | 188,888,044            | 244,242,030            |
| Accounts receivable, net of reserve                  | 55,393,227             | 65,929,820             |
| Deferred taxes                                                      | 7,176,778              | 5,110,354              |
|                                                                     |                        |                        |
|   Current assets                                          | 349,248,034            | 371,644,694            |
|                                                                     |                        |                        |
| Computer equipment                                                  | 10,778,178             | 10,104,075             |
| Furniture and fixtures                                         | 46,353,094             | 51,073,808             |
| Buildings                                                                | 179,391,878            | 183,411,627            |
| Land                                                                     | 33,407,959             | 35,329,565             |
| Accumulated depreciation                                            | (108,032,365)          | (111,058,061)          |
|                                                                     |                        |                        |
|   Fixed assets                                            | 161,898,744            | 168,861,014            |
|                                                                     |                        |                        |
| Other assets                                                        | 11,334,844             | 19,744,648             |
|                                                                     |                        |                        |
|   Total assets                                            | $522,481,622           | $560,250,356           |
|                                                                     |                        |                        |
|                                                                     |                   |                   |
| Accounts payable                                                    | $395,012               | $2,182,913             |
| Taxes payable                                                       | 3,458,044              | 1,017,154              |
| Accrued expenses                                                    | 43,472,113             | 35,228,691             |
| Deferred revenue                                                    | 36,476,917             | 44,591,578             |
| Tax reserves                                                        | 11,499,037             | 12,033,037             |
|                                                                     |                        |                        |
|   Total liabilities                                       | 95,301,123             | 95,053,373             |
|                                                                     |                        |                        |
| Common stock, $1.00 par value,                       |                   |                   |
|   authorized 40,000,000 shares,                      |                   |                   |
|   issued and outstanding 36,186,164             |                   |                   |
|   in 2010 and 36,421,348 in 2011      | 36,186,164             | 36,421,348             |
| Additional paid-in capital                                     | 80,605,225             | 89,777,401             |
| Retained income                                                     | 281,854,958            | 292,311,673            |
| Unrealized security gain                                       | 28,534,152             | 46,686,561             |
|                                                                     |                        |                        |
|   Shareholder equity                                      | 427,180,499            | 465,196,983            |
|                                                                     |                        |                        |
|   Total liabilities and shareholder equity | $522,481,622           | $560,250,356           |
|                                                                     |                        |                        |

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|                               | 3 months          | ended on          | 6 months          | ended on          |
|------------------------------------|------------------------|------------------------|------------------------|------------------------|
|                               | Jun 30, 2010 | Jun 30, 2011 | Jun 30, 2010 | Jun 30, 2011 |
|                               |                        |                        |                        |                        |
| Product revenue               | $50,960,324            | $72,016,937            | $98,118,288            | $134,834,026           |
| Service revenue               | 57,721,868             | 64,241,110             | 114,119,486            | 125,229,113            |
|                               |                        |                        |                        |                        |
|   Total revenue     | 108,682,192            | 136,258,047            | 212,237,774            | 260,063,139            |
|                               |                        |                        |                        |                        |
| Operations, development       | 49,991,433             | 60,412,519             | 99,026,400             | 117,029,405            |
| Selling, G & A  | 24,212,045             | 29,369,046             | 47,357,111             | 55,472,294             |
|                               |                        |                        |                        |                        |
|   Operating expense | 74,203,478             | 89,781,565             | 146,383,511            | 172,501,699            |
|                               |                        |                        |                        |                        |
|   Operating income  | 34,478,714             | 46,476,482             | 65,854,263             | 87,561,440             |
|                               |                        |                        |                        |                        |
| Other income                  | 4,262,762              | 3,831,473              | 8,519,407              | 7,720,861              |
| Other expense                 | 1,706,578              | 1,691,570              | 3,563,106              | 3,478,552              |
|                               |                        |                        |                        |                        |
|   Pretax income     | 37,034,898             | 48,616,385             | 70,810,564             | 91,803,749             |
|                               |                        |                        |                        |                        |
| State income tax         | 2,657,000              | 3,631,000              | 4,976,000              | 6,578,000              |
| Federal income tax       | 11,160,000             | 13,786,000             | 21,090,000             | 26,122,000             |
|                               |                        |                        |                        |                        |
|   Income tax        | 13,817,000             | 17,417,000             | 26,066,000             | 32,700,000             |
|                               |                        |                        |                        |                        |
|   Net income        | $23,217,898            | $31,199,385            | $44,744,564            | $59,103,749            |
|                               |                        |                        |                        |                        |

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|                                                                        | 6 months          | ended on          |
|-----------------------------------------------------------------------------|------------------------|------------------------|
|                                                                        | Jun 30, 2010 | Jun 30, 2011 |
|                                                                        |                        |                        |
| Net income                                                             | $44,744,564            | $59,103,749            |
| Depreciation expense                                                   | 5,086,692              | 5,244,730              |
| Change in accounts receivable, net of reserve | 2,998,859              | (7,240,590)            |
| Change in accounts payable                                   | 4,923,882              | 354,307                |
| Change in taxes payable                                      | (4,170,638)            | (2,699,081)            |
| Change in accrued expenses                                   | (7,560,284)            | (9,188,472)            |
| Change in deferred revenue                                   | 6,943,476              | 4,748,548              |
| Change in deferred taxes and tax reserves     | 204,171                | (4,345,576)            |
|                                                                        |                        |                        |
|   Net cash from operations                         | 53,170,722             | 45,977,615             |
|                                                                        |                        |                        |
| Purchases of marketable securities                           | (19,896,962)           | (37,201,577)           |
| Purchases of fixed assets                                    | (4,100,789)            | (5,549,875)            |
| Change in other assets                                       | 587,784                | 6,013,534              |
| Acquisition of LSS, net of cash acquired      | 0                      | (11,427,518)           |
|                                                                        |                        |                        |
|   Net cash used in investing                  | (23,409,967)           | (48,165,436)           |
|                                                                        |                        |                        |
| Sales of common stock                                        | 9,018,306              | 9,407,360              |
| Dividends paid                                                         | (43,133,153)           | (48,647,033)           |
|                                                                        |                        |                        |
|   Net cash used in financing                  | (34,114,847)           | (39,239,673)           |
|                                                                        |                        |                        |
| Net change in cash and equivalents                 | (4,354,092)            | (41,427,495)           |
| Cash and equivalents at beginning                       | 39,233,486             | 97,789,985             |
|                                                                        |                        |                        |
|   Cash and equivalents at end                 | $34,879,394            | $56,362,490            |
|                                                                        |                        |                        |

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|                                    | 3 months          | ended on          | 6 months          | ended on          |
|-----------------------------------------|------------------------|------------------------|------------------------|------------------------|
|                                    | Jun 30, 2010 | Jun 30, 2011 | Jun 30, 2010 | Jun 30, 2011 |
|                                    |                        |                        |                        |                        |
| Net income                         | $23,217,898            | $31,199,385            | $44,744,564            | $59,103,749            |
| Average number of shares | 36,025,541             | 36,382,151             | 36,025,541             | 36,382,151             |
| Earnings per share            | $0.64                  | $0.86                  | $1.24                  | $1.62                  |

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|                                        | 3 months          | ended on          | 6 months          | ended on          |
|---------------------------------------------|------------------------|------------------------|------------------------|------------------------|
|                                        | Jun 30, 2010 | Jun 30, 2011 | Jun 30, 2010 | Jun 30, 2011 |
|                                        |                        |                        |                        |                        |
| Net income                             | $23,217,898            | $31,199,385            | $44,744,564            | $59,103,749            |
| Net unrealized security gain | (13,034,718)           | 7,906,273              | (9,696,361)            | 18,152,409             |
|                                        |                        |                        |                        |                        |
| Comprehensive income                   | $10,183,180            | $39,105,658            | $35,048,203            | $77,256,158            |

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|               | 3 months          | ended on          | 6 months          | ended on          |
|--------------------|------------------------|------------------------|------------------------|------------------------|
|               | Jun 30, 2010 | Jun 30, 2011 | Jun 30, 2010 | Jun 30, 2011 |
|               |                        |                        |                        |                        |
| United States | 88%                    | 90%                    | 87%                    | 89%                    |
| Canada             | 9%                     | 9%                     | 10%                    | 10%                    |
| All others    | 3%                     | 1%                     | 3%                     | 1%                     |

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| Operating                               | 3 months          | ended on          | Percent |
|-----------------------------------------|------------------------|------------------------|---------|
| Results                                 | Jun 30, 2010 | Jun 30, 2011 | Change  |
|                                         |                        |                        |         |
| Total revenue                      | $108,682,192           | $136,258,047           | 25.4%   |
| Operating income                   | 34,478,714             | 46,476,482             | 34.8%   |
| Net income                         | 23,217,898             | 31,199,385             | 34.4%   |
| Average number of shares | 36,025,541             | 36,382,151             | 1.0%    |
| Earnings per share            | $0.64                  | $0.86                  | 33.1%   |
| Cash dividends per share | $0.60                  | $0.67                  | 11.7%   |

| Operating                               | 6 months          | ended on          | Percent |
|-----------------------------------------|------------------------|------------------------|---------|
| Results                                 | Jun 30, 2010 | Jun 30, 2011 | Change  |
|                                         |                        |                        |         |
| Total revenue                      | $212,237,774           | $260,063,139           | 22.5%   |
| Operating income                   | 65,854,263             | 87,561,440             | 33.0%   |
| Net income                         | 44,744,564             | 59,103,749             | 32.1%   |
| Average number of shares | 36,025,541             | 36,382,151             | 1.0%    |
| Earnings per share            | $1.24                  | $1.62                  | 30.8%   |
| Cash dividends per share | $1.20                  | $1.34                  | 11.7%   |

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| Financial Condition                    | Dec 31, 2010 | Jun 30, 2011 |
|---------------------------------------------|------------------------|------------------------|
|                                             |                        |                        |
| Working capital                        | $253,946,911           | $276,591,321           |
| Total assets                           | 522,481,622            | 560,250,356            |
| Total liabilities                      | 95,301,123             | 95,053,373             |
| Shareholder equity                     | 427,180,499            | 465,196,983            |
| Outstanding number of shares | 36,186,164             | 36,421,348             |
| Shareholder equity per share | $11.81                 | $12.77                 |

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