TTM20162015201420132012
Gross margin51.2%51.2%50.5%49.4%50.2%47.7%
Gross margin growth (bps)6767108-81250-43
Operating margin10.2%10.2%9.6%6.6%9.9%7.2%
Operating margin growth (bps)5656299-33427018
Net profit margin6.4%6.4%4.7%2.2%4.9%3.1%
Net profit margin growth (bps)173173243-26617822