TTM20162015201420132012
Gross margin75.3%74.9%73.8%73.3%75.1%75.1%
Gross margin growth (bps)14111147-174-7-14
Operating margin10.7%9.8%10.5%10.6%9.4%6.5%
Operating margin growth (bps)24-73-9119289-266
Net profit margin7.2%6.5%7.4%4.6%6.7%4.5%
Net profit margin growth (bps)-8-86273-210227-177