TTM20162015201420132012
Gross margin40.3%40.1%39.4%38.6%37.5%35.8%
Gross margin growth (bps)37184106173-342
Operating margin11.7%12.0%11.9%10.7%7.9%5.6%
Operating margin growth (bps)-6714116280234-520
Net profit margin5.0%5.1%0.5%2.5%0.2%0.8%
Net profit margin growth (bps)-17469-202227-59-329