TTM20162015201420132012
Gross margin43.2%43.2%44.4%48.2%58.3%69.2%
Gross margin growth (bps)-123-123-377-1,018-1,086-1,472
Operating margin-3.5%-3.5%-2.6%1.0%2.9%4.2%
Operating margin growth (bps)-93-93-357-193-1281,872
Net profit margin-6.2%-6.2%0.7%-2.4%-3.7%-2.3%
Net profit margin growth (bps)-685-685307130-1361,500