TTM20162015201420132012
Gross marginN/A26.0%24.8%26.1%26.6%26.8%
Gross margin growth (bps)N/A116-122-54-16-71
Operating margin5.2%5.8%4.6%3.9%4.1%4.2%
Operating margin growth (bps)1511974-18-16-88
Net profit margin2.4%3.5%2.6%2.5%2.5%2.4%
Net profit margin growth (bps)-5195553-31