Margins
| TTM | 2014 | 2013 | 2012 | 2011 | 2010 | |
|---|---|---|---|---|---|---|
| Gross margin | 55.7% | 55.6% | 54.6% | 54.0% | 54.5% | 52.9% |
| Gross margin growth (bps) | 64 | 104 | 63 | -50 | 158 | 523 |
| Operating margin | 10.0% | 9.4% | 10.5% | 14.8% | 10.3% | 8.6% |
| Operating margin growth (bps) | 23 | -110 | -434 | 455 | 170 | -46 |
| Net profit margin | 6.6% | 6.2% | 7.1% | 11.0% | 4.9% | 5.0% |
| Net profit margin growth (bps) | 55 | -96 | -389 | 609 | -8 | -128 |