TTM20162015201420132012
Gross margin35.5%34.9%35.4%37.6%36.9%34.8%
Gross margin growth (bps)60-47-22772212-640
Operating margin10.1%10.3%11.0%13.8%13.4%11.5%
Operating margin growth (bps)-42-73-28344188-670
Net profit margin6.4%6.5%7.0%9.1%8.5%7.5%
Net profit margin growth (bps)-31-48-21566100-451