TTM20162015201420132012
Gross margin47.9%47.9%47.7%48.6%50.2%51.4%
Gross margin growth (bps)2525-97-156-125-10
Operating margin-4.9%-4.9%-1.1%0.8%11.4%15.2%
Operating margin growth (bps)-372-372-191-1,058-382231
Net profit margin4.1%4.1%-17.0%-13.9%-4.3%0.1%
Net profit margin growth (bps)2,0962,107-306-958-440-70