TTM20172016201520142013
Gross margin13.3%14.3%14.5%14.3%14.5%12.8%
Gross margin growth (bps)-121-2022-21166-71
Operating margin0.7%1.5%2.3%1.9%1.8%-2.4%
Operating margin growth (bps)-160-84434426-260
Net profit margin4.1%5.2%1.4%1.4%1.4%-11.3%
Net profit margin growth (bps)277383-751,267-341