TTM20162015201420132012
Gross margin38.3%38.4%39.0%37.6%36.6%34.8%
Gross margin growth (bps)-17-6414210218238
Operating margin2.9%2.7%3.5%1.7%-0.1%-0.7%
Operating margin growth (bps)42-8218817267208
Net profit margin2.0%1.9%2.3%1.3%0.1%-0.3%
Net profit margin growth (bps)40-359312641122