TTM20132012201120102009
Gross margin27.7%27.7%30.1%31.6%31.8%31.7%
Gross margin growth (bps)-245-245-150-188332
Operating margin-0.7%-0.7%1.0%2.8%1.0%0.9%
Operating margin growth (bps)-167-167-17817662,700
Net profit margin-4.6%-4.6%-2.6%-1.5%-4.4%-1.9%
Net profit margin growth (bps)-199-199-117291-2442,792