TTM20162015201420132012
Gross margin61.8%61.7%60.7%61.4%60.7%60.8%
Gross margin growth (bps)101102-6569-1779
Operating margin14.7%14.5%14.8%13.8%15.5%15.5%
Operating margin growth (bps)-69-34101-167-3198
Net profit margin9.2%8.8%7.6%7.3%5.5%6.8%
Net profit margin growth (bps)12312027180-130110