TTM20162015201420132012
Gross margin62.4%62.2%60.7%59.7%58.1%57.0%
Gross margin growth (bps)12215499164105-204
Operating margin18.3%18.0%18.5%21.0%7.5%18.4%
Operating margin growth (bps)29-50-2461,343-1,083-107
Net profit margin11.3%11.1%11.3%11.4%4.5%11.0%
Net profit margin growth (bps)19-15-9689-647-109