TTM20162015201420132012
Gross margin45.8%45.7%45.2%45.1%44.3%43.8%
Gross margin growth (bps)4362167455496
Operating margin9.0%10.4%11.1%8.8%5.1%1.4%
Operating margin growth (bps)-233-75235372364976
Net profit margin5.9%6.8%7.4%5.8%3.0%0.6%
Net profit margin growth (bps)-187-53153287236481