TTM20152014201320122011
Gross margin21.3%19.4%18.3%17.1%24.7%26.0%
Gross margin growth (bps)234115121-761-127-1,094
Operating margin-5.4%-7.9%-11.6%-8.9%2.5%4.8%
Operating margin growth (bps)322367-273-1,135-235-1,127
Net profit margin-8.0%-9.1%-11.2%-6.8%1.5%3.0%
Net profit margin growth (bps)111214-445-825-150-667