Margins
| TTM | 2016 | 2015 | 2014 | 2013 | 2012 | |
|---|---|---|---|---|---|---|
| Gross margin | 32.4% | 31.8% | 31.6% | 32.1% | 33.1% | 32.2% |
| Gross margin growth (bps) | 114 | 19 | -48 | -104 | 90 | -13 |
| Operating margin | 3.7% | 2.9% | 2.6% | 2.6% | 4.8% | 2.8% |
| Operating margin growth (bps) | 156 | 31 | 0 | -220 | 201 | 64 |
| Net profit margin | 2.2% | 1.7% | 1.5% | 1.5% | 2.8% | 1.6% |
| Net profit margin growth (bps) | 108 | 17 | -3 | -129 | 123 | 29 |