TTM20162015201420132012
Gross margin24.1%24.0%19.6%20.6%23.7%25.9%
Gross margin growth (bps)382444-104-309-214-65
Operating margin5.1%4.9%3.5%-7.4%6.6%7.7%
Operating margin growth (bps)1331401,087-1,397-117-36
Net profit margin3.7%3.5%2.4%-4.3%4.8%12.4%
Net profit margin growth (bps)108106665-902-768-806