TTM20162015201420132012
Gross margin7.0%7.2%6.6%5.6%4.7%4.4%
Gross margin growth (bps)5857979522-58
Operating margin2.4%2.6%2.0%2.3%1.5%0.8%
Operating margin growth (bps)-358-328469-87
Net profit margin1.3%1.9%1.4%1.4%1.3%0.4%
Net profit margin growth (bps)-8252-51288-129