Margins
| TTM | 2016 | 2015 | 2014 | 2013 | 2012 | |
|---|---|---|---|---|---|---|
| Gross margin | 37.0% | 36.3% | 36.2% | 38.3% | 39.0% | 39.4% |
| Gross margin growth (bps) | 134 | 14 | -206 | -70 | -46 | 318 |
| Operating margin | 7.9% | 7.7% | 9.6% | 12.7% | 13.3% | 12.4% |
| Operating margin growth (bps) | -85 | -197 | -303 | -63 | 90 | 252 |
| Net profit margin | 4.5% | 4.4% | 5.8% | 7.7% | 7.9% | 7.3% |
| Net profit margin growth (bps) | -73 | -147 | -185 | -25 | 67 | 153 |