TTM20172016201520142013
Gross margin7.0%7.0%7.2%6.6%5.6%4.7%
Gross margin growth (bps)-18-1857979522
Operating margin2.2%2.2%2.6%2.0%2.3%1.5%
Operating margin growth (bps)-35-3858-328469
Net profit margin1.9%1.9%1.9%1.4%1.4%1.3%
Net profit margin growth (bps)0052-51288