Exhibit 12.1
| Three Months Ended | ||||||||||||||||||||||||||||
Year Ended December 31, | March 31, | |||||||||||||||||||||||||||
| 2006 | 2007 | 2008 | 2009 | 2010 | 2010 | 2011 | ||||||||||||||||||||||
| RATIO OF EARNINGS TO FIXED CHARGES | ||||||||||||||||||||||||||||
| Net Income (Loss) from Continuing Operations | $ | 55,905 | $ | 67,598 | $ | 77,691 | $ | 82,111 | $ | 58,436 | $ | 20,951 | $ | (5,913 | ) | |||||||||||||
| Interest Expense | 47,611 | 44,092 | 39,746 | 39,075 | $ | 90,602 | 14,553 | 20,710 | ||||||||||||||||||||
| Net Income (Loss) before Fixed Charges | 103,516 | 111,690 | 117,437 | 121,186 | 149,038 | 35,504 | 14,797 | |||||||||||||||||||||
| Capitalized Interest | $ | - | $ | 110 | $ | 160 | $ | 141 | $ | 22 | $ | 1 | $ | 2 | ||||||||||||||
| Interest | 47,611 | 44,092 | 39,746 | 39,075 | 90,602 | 14,553 | 20,710 | |||||||||||||||||||||
| Total Fixed Charges | $ | 47,611 | $ | 44,202 | $ | 39,906 | $ | 39,216 | $ | 90,624 | $ | 14,554 | $ | 20,712 | ||||||||||||||
| Earnings / Fixed Charge coverage ratio | 2.2 | x | 2.5 | x | 2.9 | x | 3.1 | x | 1.6 | x | 2.4 | x | * | |||||||||||||||
* Our earnings were insufficent to cover fixed charges by $5,915.