TTM20162015201420132012
Gross margin62.3%61.9%61.0%61.2%60.6%60.4%
Gross margin growth (bps)13096-21621248
Operating margin5.8%6.8%8.0%6.5%6.9%6.3%
Operating margin growth (bps)-288-125155-3860245
Net profit margin2.6%3.6%3.5%2.4%13.3%1.7%
Net profit margin growth (bps)-1566115-1,0881,152546