EXHIBIT 12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

	December 31, 2010		December 31, 2009		December 31, 2008		December 31, 2007		December 31, 2006
Earnings:
Earnings before income taxes	$	7,383	$	6,359	$	5,263	$	7,849	$	6,984
Add back:
Fixed charges		570		642		718		629		533
Total earnings available for fixed charges	$	7,953	$	7,001	$	5,981	$	8,478	$	7,517
Fixed charges:
Interest, capitalized and expensed	$	481	$	551	$	639	$	562	$	470
Interest component of rental payments		89		91		79		67		63
Total fixed charges	$	570	$	642	$	718	$	629	$	533
Ratio of earnings to fixed charges		14.0		10.9		8.3		13.5		14.1

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.