Margins
| TTM | 2016 | 2015 | 2014 | 2013 | 2012 | |
|---|---|---|---|---|---|---|
| Gross margin | 44.1% | 44.5% | 45.4% | 45.2% | 50.1% | 49.9% |
| Gross margin growth (bps) | -118 | -94 | 18 | -484 | 15 | 19 |
| Operating margin | 7.3% | 8.2% | 8.5% | 8.7% | 10.2% | 10.6% |
| Operating margin growth (bps) | -127 | -25 | -17 | -152 | -42 | -18 |
| Net profit margin | 4.3% | 4.8% | 4.9% | 5.0% | 6.0% | 6.2% |
| Net profit margin growth (bps) | -69 | -6 | -15 | -102 | -21 | -15 |