TTM20162015201420132012
Gross margin32.2%31.8%35.7%37.0%35.9%36.6%
Gross margin growth (bps)-216-385-130109-68-61
Operating margin3.2%2.5%8.8%8.9%3.5%-5.8%
Operating margin growth (bps)-415-631-8534932-859
Net profit margin0.7%0.3%4.3%4.9%1.2%-1.1%
Net profit margin growth (bps)-260-407-55370225-322