TTM20162015201420132012
Gross margin62.7%61.8%61.0%61.1%62.7%63.8%
Gross margin growth (bps)21875-7-157-11352
Operating margin6.2%5.8%6.2%8.8%9.4%12.8%
Operating margin growth (bps)372-34-261-65-33764
Net profit margin4.3%3.9%4.2%5.9%6.3%8.4%
Net profit margin growth (bps)278-24-171-38-21022