TTM20162015201420132012
Gross margin34.1%33.7%33.7%32.6%32.2%30.9%
Gross margin growth (bps)40011439136-26
Operating margin6.5%7.8%8.4%6.8%9.3%10.1%
Operating margin growth (bps)-151-61159-253-81308
Net profit margin2.8%3.8%3.9%2.1%3.4%5.3%
Net profit margin growth (bps)-111-13184-129-195-362