当期経常利益、前払年金費用、債券の純増減（△）
- 【期間】
| 年度 | 当期経常利益 | 前払年金費用 | 債券の純増減（△） |
|---|
| 2008/03 | 0.4兆 | | - | | -1.56兆 | |
| 2009/03 | -0.4兆 | 赤転 | - | | -0.86兆 | 赤縮 |
| 2010/03 | 0.33兆 | 黒転 | - | | -0.78兆 | 赤縮 |
| 2011/03 | 0.59兆 | +79.9% | - | | -0.78兆 | 赤縮 |
| 2012/03 | 0.65兆 | +10.2% | - | | -0.74兆 | 赤縮 |
| 2013/03 | 0.75兆 | +15.7% | 48.5億 | | - | |
| 2014/03 | 0.99兆 | +31.6% | 63.6億 | +31.1% | - | |
| 2015/03 | 1.01兆 | +2.4% | 91.4億 | +43.7% | - | |
| 2016/03 | 1兆 | -1.3% | 110億 | +20.1% | - | |
| 2017/03 | 0.74兆 | -26.1% | 126億 | +14.4% | - | |
| 2018/03 | 0.78兆 | +6.1% | 147億 | +16.6% | - | |
| 2019/03 | 0.61兆 | -21.5% | 171億 | +16.4% | - | |
| 2020/03 | 0.64兆 | +3.9% | 192億 | +12.6% | - | |
| 2021/03 | 0.54兆 | -15.9% | 270億 | +40.5% | - | |
| 2022/03 | 0.56兆 | +4.4% | 292億 | +8.2% | - | |
| 2023/03 | 0.79兆 | +41% | 316億 | +8.3% | - | |
