TTM20172016201520142013
Gross margin23.7%23.7%25.3%28.6%28.7%28.8%
Gross margin growth (bps)-179-179-329-13-13281
Operating margin1.4%1.5%2.5%3.2%2.8%2.5%
Operating margin growth (bps)-104-104-693428193
Net profit margin0.0%0.0%0.5%8.0%1.0%0.5%
Net profit margin growth (bps)-53-53-74269751188