TTM20152014201320122011
Gross margin46.2%46.2%48.5%47.9%48.5%52.2%
Gross margin growth (bps)-239-23860-53-370-43
Operating margin-14.1%-14.1%-16.1%0.1%2.4%1.6%
Operating margin growth (bps)195201-1,627-22274-467
Net profit margin-22.7%-22.7%-19.7%-12.8%-0.6%-1.1%
Net profit margin growth (bps)-310-306-691-1,22356-57