TTM20162015201420132012
Gross margin50.5%50.3%49.3%54.2%58.1%59.5%
Gross margin growth (bps)7096-493-384-140170
Operating margin20.2%17.2%14.4%18.5%26.7%27.8%
Operating margin growth (bps)548281-579-826-105-204
Net profit margin8.7%5.8%2.8%6.7%11.9%14.0%
Net profit margin growth (bps)497298-513-521-212-261