TTM20162015201420132012
Gross margin32.4%31.8%35.7%37.0%35.9%36.6%
Gross margin growth (bps)-80-385-130109-68-61
Operating margin2.7%2.5%8.8%8.9%3.5%-5.8%
Operating margin growth (bps)-297-631-8534932-859
Net profit margin0.0%0.3%4.3%4.9%1.2%-1.1%
Net profit margin growth (bps)-215-407-55370225-322