TTM20152014201320122011
Gross margin29.8%29.5%28.2%28.3%28.1%28.1%
Gross margin growth (bps)75130-142130
Operating margin1.6%2.4%2.4%1.7%2.9%2.9%
Operating margin growth (bps)-107-669-117-2245
Net profit margin-1.9%-2.5%-0.6%-1.1%-1.0%0.2%
Net profit margin growth (bps)24-19356-18-122144