TTM20162015201420132012
Gross margin34.6%34.6%34.8%34.8%34.6%34.3%
Gross margin growth (bps)-27-2732029-26
Operating margin9.0%9.0%8.4%8.5%7.8%7.0%
Operating margin growth (bps)5758-11767252
Net profit margin4.8%4.8%4.3%4.8%4.3%3.9%
Net profit margin growth (bps)4545-49524021