TTM20162015201420132012
Gross margin44.4%45.2%47.1%45.6%41.8%39.6%
Gross margin growth (bps)-232-190151448219-103
Operating margin2.3%1.5%4.7%4.1%-0.6%-12.7%
Operating margin growth (bps)-45-324604721,209-1,202
Net profit margin0.9%0.4%7.2%3.7%-0.6%-12.9%
Net profit margin growth (bps)-452-6863584221,238-861