TTM20162015201420132012
Gross margin32.4%31.8%31.6%32.1%33.1%32.2%
Gross margin growth (bps)11419-48-10490-13
Operating margin3.7%2.9%2.6%2.6%4.8%2.8%
Operating margin growth (bps)156310-22020164
Net profit margin2.2%1.7%1.5%1.5%2.8%1.6%
Net profit margin growth (bps)10817-3-12912329