Margins
| TTM | 2016 | 2015 | 2014 | 2013 | 2012 | |
|---|---|---|---|---|---|---|
| Gross margin | 33.9% | 34.1% | 35.6% | 35.5% | 36.1% | 36.2% |
| Gross margin growth (bps) | -97 | -152 | 14 | -65 | -11 | 39 |
| Operating margin | 5.8% | 5.8% | 7.7% | 7.9% | 8.3% | 7.9% |
| Operating margin growth (bps) | -67 | -193 | -24 | -37 | 38 | 13 |
| Net profit margin | 3.3% | 3.3% | 4.6% | 4.8% | 5.2% | 4.0% |
| Net profit margin growth (bps) | -47 | -126 | -24 | -42 | 124 | -1 |