| Three Months Ended | ||||||||||||||||||||||||
| March 31, | Year Ended December 31, | |||||||||||||||||||||||
| (dollar amounts in thousands) | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | ||||||||||||||||||
| Pretax income (loss) from continuing operations before adjustment for minority interest and income from unconsolidated subsidiaries | $ | 13,269 | $ | 61,467 | $ | 37,697 | $ | 24,083 | $ | 10,522 | $ | (17,702 | ) | |||||||||||
| Add: | ||||||||||||||||||||||||
| Fixed charges | 4,123 | 16,718 | 9,885 | 8,419 | 8,194 | 7,093 | ||||||||||||||||||
| Adjusted pretax income (loss) | $ | 17,392 | $ | 78,185 | $ | 47,582 | $ | 32,502 | $ | 18,716 | $ | (10,609 | ) | |||||||||||
| Fixed charges: | ||||||||||||||||||||||||
| Interest expense | $ | 3,581 | $ | 14,747 | $ | 8,459 | $ | 7,300 | $ | 7,216 | $ | 6,253 | ||||||||||||
| Estimate of interest within rental expense | 542 | 1,971 | 1,426 | 1,119 | 978 | 840 | ||||||||||||||||||
| Total fixed charges | $ | 4,123 | $ | 16,718 | $ | 9,885 | $ | 8,419 | $ | 8,194 | $ | 7,093 | ||||||||||||
| Ratio of earnings to fixed charges | 4.2 | 4.7 | 4.8 | 3.9 | 2.3 | (1.5 | ) | |||||||||||||||||
| Ratio of earnings to combined fixed charges and preferred stock dividends | 4.2 | 4.7 | 4.8 | 3.9 | 2.3 | (1.5 | ) | |||||||||||||||||
| Deficiency of earnings available to cover fixed charges | $ | (17,702 | ) | |||||||||||||||||||||
