| （単位：%） | 総還元性向 | 前年比（％） |
|---|---|---|
| 2023/12 | -102.8 | +21.6% |
| 2022/12 | -84.5 | -18.6% |
| 2021/12 | -103.9 | +15.7% |
| 2020/12 | -89.8 | -10.7% |
| 2019/12 | -100.5 | -33.6% |
| 2018/12 | -151.3 | +54.5% |
| 2017/12 | -97.9 | +6.0% |
| 2016/12 | -92.4 | -53.8% |
| 2015/12 | -200.1 | -0.1% |
| 2014/12 | -200.3 | +82.4% |
| 2013/12 | -109.8 | -17.6% |
| 2012/12 | -133.2 | -4.3% |
| 2011/12 | -139.3 | +44.8% |
| 2010/12 | -96.2 | - |