Margins
| TTM | 2016 | 2015 | 2014 | 2013 | 2012 | |
|---|---|---|---|---|---|---|
| Gross margin | 61.8% | 61.7% | 60.7% | 61.4% | 60.7% | 60.8% |
| Gross margin growth (bps) | 101 | 102 | -65 | 69 | -17 | 79 |
| Operating margin | 14.7% | 14.5% | 14.8% | 13.8% | 15.5% | 15.5% |
| Operating margin growth (bps) | -69 | -34 | 101 | -167 | -3 | 198 |
| Net profit margin | 9.2% | 8.8% | 7.6% | 7.3% | 5.5% | 6.8% |
| Net profit margin growth (bps) | 123 | 120 | 27 | 180 | -130 | 110 |