TTM20162015201420132012
Gross margin34.2%34.3%34.4%34.1%34.0%33.6%
Gross margin growth (bps)-30-1227193834
Operating margin9.9%10.2%10.4%10.3%10.0%9.4%
Operating margin growth (bps)-54-21133660103
Net profit margin6.3%6.4%6.6%6.5%6.4%5.9%
Net profit margin growth (bps)-35-1410144367