TTM20142013201220112010
Gross margin50.7%51.0%53.9%54.8%54.6%55.8%
Gross margin growth (bps)-260-292-9522-115137
Operating margin4.9%4.4%6.8%7.0%6.6%6.0%
Operating margin growth (bps)-87-241-204553736
Net profit margin3.0%2.7%4.1%4.3%3.9%3.7%
Net profit margin growth (bps)-45-142-214121470