TTM20162015201420132012
Gross margin29.7%30.4%33.5%32.7%31.2%29.6%
Gross margin growth (bps)-184-30374158158N/A
Operating margin5.7%5.3%8.8%5.9%3.8%-0.8%
Operating margin growth (bps)-46-349286212464N/A
Net profit margin2.0%1.7%3.4%1.6%0.3%-3.0%
Net profit margin growth (bps)-14-167185128326N/A