TTM20162015201420132012
Gross margin19.4%18.4%18.4%18.6%19.0%18.1%
Gross margin growth (bps)1403-26-3594106
Operating margin-1.3%0.4%-0.0%0.8%1.3%1.1%
Operating margin growth (bps)-15742-83-4716277
Net profit margin-0.6%0.7%0.1%0.6%6.8%1.3%
Net profit margin growth (bps)-11655-44-620545318