Margins
| TTM | 2016 | 2015 | 2014 | 2013 | 2012 | |
|---|---|---|---|---|---|---|
| Gross margin | 39.1% | 39.0% | 40.1% | 40.1% | 39.9% | 40.0% |
| Gross margin growth (bps) | -80 | -105 | -6 | 25 | -17 | 18 |
| Operating margin | 13.6% | 13.8% | 14.7% | 13.2% | 13.4% | 13.4% |
| Operating margin growth (bps) | -81 | -91 | 144 | -14 | -6 | 65 |
| Net profit margin | 7.3% | 7.3% | 7.4% | 4.6% | 5.3% | 4.5% |
| Net profit margin growth (bps) | -4 | -11 | 280 | -74 | 78 | 81 |