TTM20142013201220112010
Gross margin30.3%30.3%30.6%30.5%29.5%29.1%
Gross margin growth (bps)-29-2981004659
Operating margin10.0%10.0%10.0%9.6%8.2%7.5%
Operating margin growth (bps)-6-6391417061
Net profit margin6.0%6.0%6.1%5.8%4.7%4.2%
Net profit margin growth (bps)-7-7301025350