TTM20162015201420132012
Gross margin31.2%33.1%33.1%33.3%34.7%35.0%
Gross margin growth (bps)-167-1-25-140-2982
Operating margin-12.5%3.5%7.0%8.5%10.1%10.5%
Operating margin growth (bps)-1,895-349-144-168-31148
Net profit margin-12.0%1.9%4.2%5.0%6.1%6.4%
Net profit margin growth (bps)-1,553-226-85-107-28116