TTM20172016201520142013
Gross margin42.3%42.5%43.2%46.0%47.3%45.5%
Gross margin growth (bps)-5-70-281-135187105
Operating margin2.7%2.1%-11.4%-0.4%9.0%8.2%
Operating margin growth (bps)1,4521,349-1,107-93477304
Net profit margin2.2%2.0%-8.2%-1.4%4.7%5.0%
Net profit margin growth (bps)1,0701,022-684-612-30190