| 2015/03 | 2016/03 | 2017/03 | 2018/03 | 2019/03 | 2020/03 | 2021/03 | 2022/03 | 2023/03 | 2024/03 | |
| Net assets per share | 34.16 | 30.01 | 64.46 | 51.19 | 59.36 | 62.93 | 67.32 | 68.49 | 49.79 | 64.94 |
| Net income per share | 368.15 | 362.77 | 439.04 | 460.66 | 478.26 | 493.26 | 568.93 | 590.21 | 614.09 | 681.58 |
| Dividend | 12 | 14 | 28 | 28 | 28 | 28 | 30 | 32 | 32 | 33 |
| Payout ratio | 35.1％ | 46.7％ | 43.4％ | 54.7％ | 47.2％ | 44.5％ | 44.6％ | 46.7％ | 64.8％ | 50.8％ |