TTM20162015201420132012
Gross margin30.6%33.1%33.1%33.3%34.7%35.0%
Gross margin growth (bps)-207-1-25-140-2982
Operating margin-23.4%3.5%7.0%8.5%10.1%10.5%
Operating margin growth (bps)-2,956-349-144-168-31148
Net profit margin-20.3%1.9%4.2%5.0%6.1%6.4%
Net profit margin growth (bps)-2,361-226-85-107-28116