TTM20152014201320122011
Gross margin19.5%19.2%18.3%18.6%18.8%20.7%
Gross margin growth (bps)9994-29-17-196-88
Operating margin3.2%3.3%3.0%3.2%3.1%4.9%
Operating margin growth (bps)1434-1811-179-153
Net profit margin2.1%2.2%2.1%2.4%2.1%3.3%
Net profit margin growth (bps)814-3632-116-99