TTM20162015201420132012
Gross margin35.6%35.7%35.1%35.0%35.1%35.8%
Gross margin growth (bps)596013-16-6648
Operating margin11.1%11.4%11.2%11.3%10.0%9.0%
Operating margin growth (bps)522-1512910517
Net profit margin7.1%7.2%6.9%7.1%6.0%4.8%
Net profit margin growth (bps)1525-13106122-63