Development Projects In Progress And Development Projects In Progress And Structures Net Net And Development Projects In Progress Net Net、浚渫船（純額）、自己株式
- 【期間】
| 年度 | Development Projects In Progress And Development Projects In Progress And Structures Net Net And Development Projects In Progress Net Net | 浚渫船（純額） | 自己株式 |
|---|
| 2007/03 | - | | - | | -0.15億 | |
| 2008/03 | - | | 17.6億 | | -0.2億 | 赤拡 |
| 2009/03 | - | | 12.6億 | -28.3% | -0.22億 | 赤拡 |
| 2010/03 | - | | 10.1億 | -20.1% | -0.22億 | ±0% |
| 2011/03 | - | | 9.4億 | -6.9% | -0.22億 | ±0% |
| 2012/03 | - | | 5.4億 | -42.6% | -0.23億 | 赤拡 |
| 2013/03 | - | | 7.42億 | +37.4% | -0.23億 | ±0% |
| 2014/03 | - | | 10.9億 | +46.6% | -0.24億 | 赤拡 |
| 2015/03 | - | | 9.35億 | -14.1% | -0.25億 | 赤拡 |
| 2016/03 | - | | 7.17億 | -23.3% | -0.25億 | ±0% |
| 2017/03 | - | | 5.87億 | -18.1% | -0.26億 | 赤拡 |
| 2018/03 | - | | 4.81億 | -18.1% | -3.26億 | 赤拡 |
| 2019/03 | - | | 4.14億 | -13.9% | -3.83億 | 赤拡 |
| 2020/03 | - | | 4.17億 | +0.7% | -3.73億 | 赤縮 |
| 2021/03 | - | | 2.58億 | -38.1% | -5.9億 | 赤拡 |
| 2022/03 | - | | 9.19億 | +256.2% | -5.64億 | 赤縮 |
| 2023/03 | - | | 8.82億 | -4% | -5.11億 | 赤縮 |
| 2024/03 | - | | 6.59億 | -25.3% | -7.73億 | 赤拡 |
| 2025/03 | - | | 4.55億 | -31% | -27.6億 | 赤拡 |
