TTM20172016201520142013
Gross margin11.2%11.3%11.3%11.1%10.7%10.6%
Gross margin growth (bps)-11-22642147
Operating margin3.2%3.2%3.1%3.1%2.9%2.9%
Operating margin growth (bps)149-326-412
Net profit margin2.2%2.1%2.0%2.0%1.8%1.9%
Net profit margin growth (bps)2110-722-1122