TTM20172016201520142013
Gross margin14.3%14.3%14.5%14.3%14.5%12.8%
Gross margin growth (bps)-20-2022-21166-71
Operating margin1.5%1.5%2.3%1.9%1.8%-2.4%
Operating margin growth (bps)-84-84434426-260
Net profit margin5.2%5.2%1.4%1.4%1.4%-11.3%
Net profit margin growth (bps)383383-751,267-341