Development Projects In Progress And Development Projects In Progress And Development Projects In Progress Net、当期純利益又は当期純損失（△）、浚渫船（純額）
- 【期間】
| 年度 | Development Projects In Progress And Development Projects In Progress And Development Projects In Progress Net | 当期純利益又は当期純損失（△） | 浚渫船（純額） |
|---|
| 2008/03 | - | | 13.9億 | | 17.6億 | |
| 2009/03 | - | | -31.2億 | 赤転 | 12.6億 | -28.3% |
| 2010/03 | - | | 22.3億 | 黒転 | 10.1億 | -20.1% |
| 2011/03 | - | | 19.2億 | -13.6% | 9.4億 | -6.9% |
| 2012/03 | - | | 20.8億 | +8.3% | 5.4億 | -42.6% |
| 2013/03 | - | | 23.2億 | +11.4% | 7.42億 | +37.4% |
| 2014/03 | - | | - | | 10.9億 | +46.6% |
| 2015/03 | - | | - | | 9.35億 | -14.1% |
| 2016/03 | - | | - | | 7.17億 | -23.3% |
| 2017/03 | - | | - | | 5.87億 | -18.1% |
| 2018/03 | - | | - | | 4.81億 | -18.1% |
| 2019/03 | - | | - | | 4.14億 | -13.9% |
| 2020/03 | - | | - | | 4.17億 | +0.7% |
| 2021/03 | - | | - | | 2.58億 | -38.1% |
| 2022/03 | - | | - | | 9.19億 | +256.2% |
| 2023/03 | - | | - | | 8.82億 | -4% |
| 2024/03 | - | | - | | 6.59億 | -25.3% |
| 2025/03 | - | | - | | 4.55億 | -31% |
