TTM20162015201420132012
Gross margin57.6%58.1%58.3%58.6%58.8%58.8%
Gross margin growth (bps)-76-21-31-17-584
Operating margin1.6%5.0%3.1%6.0%4.1%3.4%
Operating margin growth (bps)-219193-29318673446
Net profit margin0.6%1.8%0.6%2.9%1.1%-0.0%
Net profit margin growth (bps)-51121-229181111482