TTM20162015201420132012
Gross margin40.7%40.7%43.0%44.0%44.3%44.4%
Gross margin growth (bps)-165-226-100-25-1733
Operating margin15.0%15.7%20.5%22.3%22.8%23.0%
Operating margin growth (bps)-455-484-178-50-1974
Net profit margin9.7%10.0%13.2%14.1%14.4%14.6%
Net profit margin growth (bps)-287-311-94-32-2037