Development Projects In Progress And Development Projects In Progress And Liabilities And Net Assets、浚渫船（純額）、構築物（純額）
- 【期間】
| 年度 | Development Projects In Progress And Development Projects In Progress And Liabilities And Net Assets | 浚渫船（純額） | 構築物（純額） |
|---|
| 2008/03 | - | | 17.6億 | | 6.11億 | |
| 2009/03 | - | | 12.6億 | -28.3% | 5.5億 | -10% |
| 2010/03 | - | | 10.1億 | -20.1% | 4.95億 | -10% |
| 2011/03 | - | | 9.4億 | -6.9% | 4.45億 | -10.1% |
| 2012/03 | - | | 5.4億 | -42.6% | 4.86億 | +9.2% |
| 2013/03 | - | | 7.42億 | +37.4% | 5.47億 | +12.6% |
| 2014/03 | - | | 10.9億 | +46.6% | 5.26億 | -3.8% |
| 2015/03 | - | | 9.35億 | -14.1% | 5.06億 | -3.8% |
| 2016/03 | - | | 7.17億 | -23.3% | 6.53億 | +29.1% |
| 2017/03 | - | | 5.87億 | -18.1% | 5.91億 | -9.5% |
| 2018/03 | - | | 4.81億 | -18.1% | 8.24億 | +39.4% |
| 2019/03 | - | | 4.14億 | -13.9% | 10.3億 | +25% |
| 2020/03 | - | | 4.17億 | +0.7% | 10億 | -2.6% |
| 2021/03 | - | | 2.58億 | -38.1% | 10.2億 | +2.1% |
| 2022/03 | - | | 9.19億 | +256.2% | 9.29億 | -9.3% |
| 2023/03 | - | | 8.82億 | -4% | 12.6億 | +36.1% |
| 2024/03 | - | | 6.59億 | -25.3% | 11.6億 | -8.2% |
| 2025/03 | - | | 4.55億 | -31% | 13億 | +11.9% |
