| 年份 | 总资产报酬率 | 销售毛利率 | 营业总收入/营业总成本 |
| 2012 | 6.59% | 28.86% | 1.11 |
| 2013 | 5.93% | 28.47% | 1.08 |
| 2014 | 6.16% | 28.70% | 1.08 |
| 2015 | 5.41% | 29.02% | 1.07 |
| 2016 | 5.47% | 29.59% | 1.08 |
| 2017 | 4.46% | 28.99% | 1.06 |
| 年均增速 | −7.52% | 0.09% | −0.88% |