TTM20162015201420132012
Gross margin14.3%14.4%14.6%14.6%19.4%20.9%
Gross margin growth (bps)-22-21-2-482-150-19
Operating margin-1.2%1.4%1.6%1.5%1.1%2.3%
Operating margin growth (bps)-277-201534-122-19
Net profit margin-0.9%0.7%0.8%0.7%0.3%1.1%
Net profit margin growth (bps)-172-8848-79-15