TTM20162015201420132012
Gross margin38.1%37.3%37.1%36.8%37.0%37.0%
Gross margin growth (bps)992224-20726
Operating margin-6.0%-7.2%-5.8%5.9%5.4%7.2%
Operating margin growth (bps)49-135-1,17150-18418
Net profit margin-7.1%-7.4%-6.5%3.6%2.0%3.5%
Net profit margin growth (bps)25-95-1,003157-14677