EXHIBIT 12.1

Computation of Ratio of Earnings to Fixed Charges

	December 31, 2009		December 31, 2008		December 31, 2007		December 31, 2006		December 31, 2005
Earnings:
Earnings before income taxes	$	6,359	$	5,263	$	7,849	$	6,984	$	5,080
Add back:
Fixed charges		642		718		629		533		294
Total earnings available for fixed charges	$	7,001	$	5,981	$	8,478	$	7,517	$	5,374
Fixed Charges:
Interest, capitalized and expensed	$	551	$	639	$	562	$	470	$	248
Interest component of rental payments		91		79		67		63		46
Total fixed charges	$	642	$	718	$	629	$	533	$	294
Ratio of earnings to fixed charges		10.9		8.3		13.5		14.1		18.3

The ratio of earnings to fixed charges is computed by dividing total earnings available for fixed charges by the fixed charges. For purposes of computing this ratio, fixed charges consist of interest expense plus the interest factor in rental expense.