TTM20162015201420132012
Gross margin36.4%36.2%36.8%37.0%36.6%36.4%
Gross margin growth (bps)10-58-20352620
Operating margin14.6%13.9%14.6%14.5%14.4%14.9%
Operating margin growth (bps)36-7359-45114
Net profit margin7.4%7.0%7.2%6.7%6.8%7.3%
Net profit margin growth (bps)34-2343-7-5155