TTM20172016201520142013
Gross margin26.7%27.6%28.6%29.2%29.1%29.2%
Gross margin growth (bps)-126-99-555-10-25
Operating margin1.7%1.8%2.9%4.6%4.7%4.4%
Operating margin growth (bps)-21-106-169-72287
Net profit margin1.4%0.9%1.6%2.6%2.6%2.5%
Net profit margin growth (bps)48-73-9711447