|                                                            |            |                             |                            |          |            |             | **Exhibit 12** |
|-----------------------------------------------------------------|-----------------|----------------------------------|---------------------------------|---------------|-----------------|------------------|----------------|
| **Computation of Ratio of Earnings to Fixed Charges**           |            |                             |                            |          |            |
| (Dollars in thousands)                                          |            |                             |                            |          |            |             |
|                                                            |            |                             |                            |          |            |             |           |
|                                                            |            |                             | For the year ended December 31, |
|                                                            |            |                             | 2008                            | 2007          | 2006            | 2005             | 2004           |
|                                                            |            |                             |                            |          |            |             |           |
| Earnings before income taxes                                    | $       605,776 | $    994,870 | $    896,348                    | $    799,425  | $       526,991 |
| Fixed charges                                                   |            | 109,977                          | 93,240                          | 62,546        | 68,472          | 20,649           |
| Earnings before income taxes and fixed charges                  | $    715,753    | $    1,088,110                   | $   958,894                     | $    867,897  | $       547,640 |
|                                                            |            |                             |                            |          |            |             |           |
|                                                            |            |                             |                            |          |            |             |           |
| Fixed charges:                                                  |            |                             |                            |          |            |             |
| Interest expense                                                |            | $   96,386        | $      82,217                   | $      52,446 | $     58,414    | $         14,301 |
| Portion of rental expense representative of interest factor (1) | 13,591          | 11,023                           | 10,100                          | 10,058        | 6,348           |
| Total fixed charges                                             |            | $        109,977                 | $      93,240                   | $      62,546 | $      68,472   | $         20,649 |
|                                                            |            |                             |                            |          |            |             |           |
| Ratio of earnings to fixed charges                              | 6.5             | 11.7                             | 15.3                            | 12.7          | 26.5            |

 (1) One-third of net rent expense is the portion deemed representative of the interest factor.