TTM20162015201420132012
Gross margin34.1%35.7%36.0%34.9%30.9%38.0%
Gross margin growth (bps)-139-30110399-705-15
Operating margin-2.2%0.3%1.4%-0.9%-6.7%0.9%
Operating margin growth (bps)-271-111229581-765-128
Net profit margin-2.0%0.4%1.1%-1.2%-6.7%0.5%
Net profit margin growth (bps)-233-76232555-721-69