TTM20162015201420132012
Gross margin6.6%7.2%6.6%5.6%4.7%4.4%
Gross margin growth (bps)4757979522-58
Operating margin2.0%2.6%2.0%2.3%1.5%0.8%
Operating margin growth (bps)-2258-328469-87
Net profit margin1.1%1.9%1.4%1.4%1.3%0.4%
Net profit margin growth (bps)-8552-51288-129