TTM20152014201320122011
Gross margin13.2%13.3%13.1%12.1%11.3%10.9%
Gross margin growth (bps)-81897793896
Operating margin10.6%10.7%11.0%10.6%10.3%10.0%
Operating margin growth (bps)-41-3942362663
Net profit margin7.6%7.8%16.0%20.4%8.4%7.0%
Net profit margin growth (bps)-637-821-4391,196143256