Development Projects In Progress And Development Projects In Progress And Intangible Assets、浚渫船（純額）、退職給付に係る資産の増減額（△は増加）
- 【期間】
| 年度 | Development Projects In Progress And Development Projects In Progress And Intangible Assets | 浚渫船（純額） | 退職給付に係る資産の増減額（△は増加） |
|---|
| 2008/03 | - | | 17.6億 | | - | |
| 2009/03 | - | | 12.6億 | -28.3% | - | |
| 2010/03 | - | | 10.1億 | -20.1% | - | |
| 2011/03 | - | | 9.4億 | -6.9% | - | |
| 2012/03 | - | | 5.4億 | -42.6% | - | |
| 2013/03 | - | | 7.42億 | +37.4% | - | |
| 2014/03 | - | | 10.9億 | +46.6% | - | |
| 2015/03 | - | | 9.35億 | -14.1% | 9.83億 | |
| 2015/09 | - | | - | | -12.1億 | 赤転 |
| 2016/03 | - | | 7.17億 | -23.3% | -18.8億 | 赤拡 |
| 2016/09 | - | | - | | -1.79億 | 赤縮 |
| 2017/03 | - | | 5.87億 | -18.1% | -3.57億 | 赤拡 |
| 2017/09 | - | | - | | -3.29億 | 赤縮 |
| 2018/03 | - | | 4.81億 | -18.1% | -4.93億 | 赤拡 |
| 2018/09 | - | | - | | -1.64億 | 赤縮 |
| 2019/03 | - | | 4.14億 | -13.9% | -3.52億 | 赤拡 |
| 2019/09 | - | | - | | -1.48億 | 赤縮 |
| 2020/03 | - | | 4.17億 | +0.7% | -1.56億 | 赤拡 |
| 2020/09 | - | | - | | -1.4億 | 赤縮 |
| 2021/03 | - | | 2.58億 | -38.1% | -2.75億 | 赤拡 |
| 2021/09 | - | | - | | -1.45億 | 赤縮 |
| 2022/03 | - | | 9.19億 | +256.2% | -2.86億 | 赤拡 |
| 2022/09 | - | | - | | -1.29億 | 赤縮 |
| 2023/03 | - | | 8.82億 | -4% | -2.53億 | 赤拡 |
| 2023/09 | - | | - | | -1.28億 | 赤縮 |
| 2024/03 | - | | 6.59億 | -25.3% | -4.42億 | 赤拡 |
| 2024/09 | - | | - | | -2.16億 | 赤縮 |
| 2025/03 | - | | 4.55億 | -31% | -6.61億 | 赤拡 |
