TTM20162015201420132012
Gross margin45.9%46.4%48.1%49.0%48.7%47.9%
Gross margin growth (bps)-176-165-952982-48
Operating margin7.3%8.7%10.3%11.5%11.4%11.4%
Operating margin growth (bps)-177-166-11711-132
Net profit margin4.4%4.1%5.9%6.7%7.0%7.0%
Net profit margin growth (bps)45-177-88-22-644