EXHIBIT 12.1
 

 
COMPUTATION OF
RATIO OF EARNINGS TO FIXED CHARGES
               
Years Ended December 31,
2008
 
2007
 
2006
 
2005
 
2004
                 
7.0
 
12.4
 
24.2
 
23.2
 
18.7
                 
                 
The ratio of earnings to fixed charges has been computed by dividing earnings available for
fixed charges (earnings from continuing operations before income taxes plus fixed charges
and amortization of capitalized interest less capitalized interest) by fixed charges (interest
expense plus capitlaized interest).