TTM20162015201420132012
Gross margin30.1%30.4%28.7%27.7%29.1%30.1%
Gross margin growth (bps)8417499-143-104-257
Operating margin0.1%0.1%-0.7%-2.1%-5.8%-11.8%
Operating margin growth (bps)4383138371598-688
Net profit margin-0.1%0.2%-0.4%-2.4%-6.1%-11.8%
Net profit margin growth (bps)-1068199371570-721