TTM20172016201520142013
Gross margin47.5%46.4%45.7%45.2%45.1%44.3%
Gross margin growth (bps)1146862167455
Operating margin9.0%9.2%10.4%11.1%8.8%5.1%
Operating margin growth (bps)5-120-75235372364
Net profit margin4.1%4.3%6.8%7.4%5.8%3.0%
Net profit margin growth (bps)-225-252-53153287236