Exhibit 12

Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends



|                                                                                                                                                        |  |                          |        |                         |   |         |  |      |         |      |   |         |  |   |        |  |   |       
|------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ------------------------ | ------ | ----------------------- | - | ------- |  | ---- | ------- | ---- | - | ------- |  | - | ------ |  | - | ------
|                                                                                                                                                        |  | Year Ended September 30, |        | Six MonthsEndedMarch 31
|(in thousands)                                                                                                                                          |  | 2003                     |        | 2004                    |   | 2005    |  | 2006 |         | 2007 |   | 2008   
|Fixed Charges Computation                                                                                                                               |  |                          |        |                         |   |         |  |      |         |      |   |         |  |   |        |  |   |       
|Interest expensed and capitalized (1)                                                                                                                   |  | $                        | 12,060 |                         | $ | 13,857  |  | $    | 49,043  |      | $ | 35,119  |  | $ | 29,671 |  | $ | 12,046
|Amortized premiums, discounts, and capitalized expenses related to indebtedness                                                                         |  |                          | 3,857  |                         |   | 6,031   |  |      | 10,634  |      |   | 2,843   |  |   | 5,318  |  |   | 1,332 
|Reasonable approximation of interest within rental expense                                                                                              |  |                          | 1,139  |                         |   | 1,462   |  |      | 2,433   |      |   | 3,092   |  |   | 3,440  |  |   | 1,722 
|                                                                                                                                                        |  |                          |        |                         |   |         |  |      |         |      |   |         |  |   |        |  |   |       
|Total Fixed Charges and Preferred Equity Dividends                                                                                                      |  | $                        | 17,056 |                         | $ | 21,350  |  | $    | 62,110  |      | $ | 41,054  |  | $ | 38,429 |  | $ | 15,100
|                                                                                                                                                        |  |                          |        |                         |   |         |  |      |         |      |   |         |  |   |        |  |   |       
|Earnings Computation                                                                                                                                    |  |                          |        |                         |   |         |  |      |         |      |   |         |  |   |        |  |   |       
|Pre-tax income from continuing operations before adjustment for minority interests in consolidated subsidiaries or income or loss from equity
investees |  | $                        | 60,081 |                         | $ | 105,107 |  | $    | 163,808 |      | $ | 137,816 |  | $ | 59,236 |  | $ | 10,465
|Plus                                                                                                                                                    |  |                          |        |                         |   |         |  |      |         |      |   |         |  |   |        |  |   |       
|Fixed charges                                                                                                                                           |  |                          | 17,056 |                         |   | 21,350  |  |      | 62,110  |      |   | 41,054  |  |   | 38,429 |  |   | 15,100
|Minus                                                                                                                                                   |  |                          |        |                         |   |         |  |      |         |      |   |         |  |   |        |  |   |       
|Interest capitalized                                                                                                                                    |  |                          | 230    |                         |   | 435     |  |      | 464     |      |   | 1,027   |  |   | 784    |  |   | 369   
|                                                                                                                                                        |  |                          |        |                         |   |         |  |      |         |      |   |         |  |   |        |  |   |       
|Total Earnings                                                                                                                                          |  | $                        | 76,907 |                         | $ | 126,022 |  | $    | 225,454 |      | $ | 177,843 |  | $ | 96,881 |  | $ | 25,196
|                                                                                                                                                        |  |                          |        |                         |   |         |  |      |         |      |   |         |  |   |        |  |   |       
|Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends                                                                               |  |                          | 4.51   |                         |   | 5.90    |  |      | 3.63    |      |   | 4.33    |  |   | 2.52   |  |   | 1.67  



|(1) | Interest expense associated with unrecognized tax benefits is included in income tax expense, not with interest expense.
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