TTM20162015201420132012
Gross margin35.7%35.7%36.0%34.8%29.4%31.3%
Gross margin growth (bps)-30-37128532-187-471
Operating margin2.2%3.1%-0.7%-2.5%-12.0%-10.1%
Operating margin growth (bps)232385181946-189-1,008
Net profit margin-0.9%0.0%-4.1%-6.3%-11.7%-7.6%
Net profit margin growth (bps)253407223541-412-671