TTM20162015201420132012
Gross margin33.3%33.9%36.7%36.9%37.8%38.3%
Gross margin growth (bps)-293-283-23-84-51248
Operating margin-8.5%-6.8%14.7%16.6%17.5%17.6%
Operating margin growth (bps)-2,256-2,146-190-95-10420
Net profit margin-12.4%-11.3%8.2%9.6%10.1%9.9%
Net profit margin growth (bps)-2,016-1,944-146-4419360