TTM20182017201620152014
Gross margin14.3%14.3%14.4%14.2%14.6%14.6%
Gross margin growth (bps)-10-1024-39-4-9
Operating margin4.0%4.0%4.5%4.7%5.2%5.4%
Operating margin growth (bps)-57-57-16-52-21-9
Net profit margin2.3%2.3%3.0%3.1%3.2%3.7%
Net profit margin growth (bps)-68-68-3-13-513