TTM20162015201420132012
Gross margin28.2%28.5%29.3%30.2%31.2%32.1%
Gross margin growth (bps)-3-86-92-96-89-21
Operating margin7.3%7.4%8.2%9.7%10.2%10.5%
Operating margin growth (bps)135-77-155-49-30301
Net profit margin4.4%4.6%5.2%6.1%6.4%6.5%
Net profit margin growth (bps)45-60-95-25-10-215