TTM20162015201420132012
Gross margin27.2%27.2%27.3%26.9%26.9%27.3%
Gross margin growth (bps)-9-1345-4-4038
Operating margin2.6%2.7%2.7%2.0%3.0%3.9%
Operating margin growth (bps)-3-478-103-9196
Net profit margin1.5%1.5%1.9%0.3%1.7%2.2%
Net profit margin growth (bps)-42-40160-141-4660