Development Projects In Progress And Development Projects In Progress And Development Projects In Progress And Deferred Assets Net、浚渫船（純額）、投資その他の資産合計
- 【期間】
| 年度 | Development Projects In Progress And Development Projects In Progress And Development Projects In Progress And Deferred Assets Net | 浚渫船（純額） | 投資その他の資産合計 |
|---|
| 2008/03 | - | | 17.6億 | | 330億 | |
| 2009/03 | - | | 12.6億 | -28.3% | 332億 | +0.6% |
| 2010/03 | - | | 10.1億 | -20.1% | 258億 | -22.4% |
| 2010/12 | - | | - | | 256億 | -0.5% |
| 2011/03 | - | | 9.4億 | -6.9% | 249億 | -2.7% |
| 2011/06 | - | | - | | 242億 | -3% |
| 2011/09 | - | | - | | 239億 | -1.1% |
| 2011/12 | - | | - | | 229億 | -4.2% |
| 2012/03 | - | | 5.4億 | -42.6% | 212億 | -7.3% |
| 2012/06 | - | | - | | 201億 | -5.2% |
| 2012/09 | - | | - | | 204億 | +1.4% |
| 2012/12 | - | | - | | 210億 | +2.8% |
| 2013/03 | - | | 7.42億 | +37.4% | 224億 | +6.5% |
| 2013/06 | - | | - | | 205億 | -8.1% |
| 2013/09 | - | | - | | 218億 | +6.1% |
| 2013/12 | - | | - | | 220億 | +1% |
| 2014/03 | - | | 10.9億 | +46.6% | 220億 | -0.1% |
| 2014/06 | - | | - | | 222億 | +0.9% |
| 2014/09 | - | | - | | 214億 | -3.9% |
| 2014/12 | - | | - | | 215億 | +0.5% |
| 2015/03 | - | | 9.35億 | -14.1% | 218億 | +1.4% |
| 2015/06 | - | | - | | 222億 | +2.2% |
| 2015/09 | - | | - | | 222億 | -0.4% |
| 2015/12 | - | | - | | 217億 | -2% |
| 2016/03 | - | | 7.17億 | -23.3% | 199億 | -8.5% |
| 2016/06 | - | | - | | 195億 | -2.1% |
| 2016/09 | - | | - | | 198億 | +1.7% |
| 2016/12 | - | | - | | 208億 | +5.1% |
| 2017/03 | - | | 5.87億 | -18.1% | 210億 | +0.8% |
| 2017/06 | - | | - | | 220億 | +4.9% |
| 2017/09 | - | | - | | 220億 | -0% |
| 2017/12 | - | | - | | 232億 | +5.8% |
| 2018/03 | - | | 4.81億 | -18.1% | 234億 | +0.7% |
| 2018/06 | - | | - | | 267億 | +13.8% |
| 2018/09 | - | | - | | 277億 | +4% |
| 2018/12 | - | | - | | 270億 | -2.4% |
| 2019/03 | - | | 4.14億 | -13.9% | 277億 | +2.3% |
| 2019/06 | - | | - | | 254億 | -8.2% |
| 2019/09 | - | | - | | 274億 | +7.9% |
| 2019/12 | - | | - | | 272億 | -0.5% |
| 2020/03 | - | | 4.17億 | +0.7% | 272億 | -0.1% |
| 2020/06 | - | | - | | 251億 | -8% |
| 2020/09 | - | | - | | 268億 | +6.9% |
| 2020/12 | - | | - | | 255億 | -4.7% |
| 2021/03 | - | | 2.58億 | -38.1% | 288億 | +12.9% |
| 2021/06 | - | | - | | 298億 | +3.3% |
| 2021/09 | - | | - | | 317億 | +6.4% |
| 2021/12 | - | | - | | 311億 | -1.8% |
| 2022/03 | - | | 9.19億 | +256.2% | 317億 | +1.9% |
| 2022/06 | - | | - | | 306億 | -3.4% |
| 2022/09 | - | | - | | 320億 | +4.3% |
| 2022/12 | - | | - | | 340億 | +6.3% |
| 2023/03 | - | | 8.82億 | -4% | 354億 | +4.1% |
| 2023/06 | - | | - | | 356億 | +0.6% |
| 2023/09 | - | | - | | 371億 | +4.2% |
| 2023/12 | - | | - | | 368億 | -0.9% |
| 2024/03 | - | | 6.59億 | -25.3% | 384億 | +4.5% |
| 2024/06 | - | | - | | 373億 | -2.9% |
| 2024/09 | - | | - | | 359億 | -3.7% |
| 2024/12 | - | | - | | 355億 | -1.1% |
| 2025/03 | - | | 4.55億 | -31% | 367億 | +3.3% |
| 2025/06 | - | | - | | 354億 | -3.6% |
| 2025/09 | - | | - | | 381億 | +7.8% |
