TTM20162015201420132012
Gross margin58.1%58.1%58.3%58.6%58.8%58.8%
Gross margin growth (bps)-21-21-31-17-584
Operating margin5.0%5.0%3.1%6.0%4.1%3.4%
Operating margin growth (bps)193193-29318673446
Net profit margin1.8%1.8%0.6%2.9%1.1%-0.0%
Net profit margin growth (bps)121121-229181111482