TTM20142013201220112010
Gross margin33.5%33.7%34.2%34.9%35.5%35.7%
Gross margin growth (bps)-55-54-73-54-2286
Operating margin3.3%4.0%6.6%7.1%7.3%7.3%
Operating margin growth (bps)-186-260-50-17-1114
Net profit margin2.2%2.7%4.3%4.5%4.5%4.6%
Net profit margin growth (bps)-122-156-26-2-162