Development Projects In Progress And Development Projects In Progress And Net Investments In Development ProjectIOA、浚渫船（純額）、株主資本合計
- 【期間】
| 年度 | Development Projects In Progress And Development Projects In Progress And Net Investments In Development ProjectIOA | 浚渫船（純額） | 株主資本合計 |
|---|
| 2008/03 | - | | 17.6億 | | 521億 | |
| 2009/03 | - | | 12.6億 | -28.3% | 488億 | -6.4% |
| 2010/03 | - | | 10.1億 | -20.1% | 502億 | +2.8% |
| 2010/12 | - | | - | | 513億 | +2.2% |
| 2011/03 | - | | 9.4億 | -6.9% | 552億 | +7.6% |
| 2011/06 | - | | - | | 552億 | +0% |
| 2011/09 | - | | - | | 556億 | +0.6% |
| 2011/12 | - | | - | | 551億 | -0.9% |
| 2012/03 | - | | 5.4億 | -42.6% | 563億 | +2.2% |
| 2012/06 | - | | - | | 558億 | -0.8% |
| 2012/09 | - | | - | | 561億 | +0.5% |
| 2012/12 | - | | - | | 566億 | +0.9% |
| 2013/03 | - | | 7.42億 | +37.4% | 574億 | +1.5% |
| 2013/06 | - | | - | | 573億 | -0.2% |
| 2013/09 | - | | - | | 585億 | +2.1% |
| 2013/12 | - | | - | | 601億 | +2.7% |
| 2014/03 | - | | 10.9億 | +46.6% | 605億 | +0.7% |
| 2014/06 | - | | - | | 584億 | -3.6% |
| 2014/09 | - | | - | | 608億 | +4.2% |
| 2014/12 | - | | - | | 630億 | +3.5% |
| 2015/03 | - | | 9.35億 | -14.1% | 655億 | +4% |
| 2015/06 | - | | - | | 668億 | +2.1% |
| 2015/09 | - | | - | | 688億 | +2.9% |
| 2015/12 | - | | - | | 732億 | +6.3% |
| 2016/03 | - | | 7.17億 | -23.3% | 747億 | +2.1% |
| 2016/06 | - | | - | | 777億 | +3.9% |
| 2016/09 | - | | - | | 797億 | +2.7% |
| 2016/12 | - | | - | | 834億 | +4.6% |
| 2017/03 | - | | 5.87億 | -18.1% | 887億 | +6.3% |
| 2017/06 | - | | - | | 903億 | +1.8% |
| 2017/09 | - | | - | | 948億 | +5% |
| 2017/12 | - | | - | | 994億 | +4.9% |
| 2018/03 | - | | 4.81億 | -18.1% | 1028億 | +3.3% |
| 2018/06 | - | | - | | 1039億 | +1.1% |
| 2018/09 | - | | - | | 1096億 | +5.5% |
| 2018/12 | - | | - | | 1119億 | +2.2% |
| 2019/03 | - | | 4.14億 | -13.9% | 1176億 | +5.1% |
| 2019/06 | - | | - | | 1181億 | +0.4% |
| 2019/09 | - | | - | | 1243億 | +5.2% |
| 2019/12 | - | | - | | 1300億 | +4.7% |
| 2020/03 | - | | 4.17億 | +0.7% | 1355億 | +4.2% |
| 2020/06 | - | | - | | 1346億 | -0.7% |
| 2020/09 | - | | - | | 1389億 | +3.2% |
| 2020/12 | - | | - | | 1435億 | +3.3% |
| 2021/03 | - | | 2.58億 | -38.1% | 1494億 | +4.2% |
| 2021/06 | - | | - | | 1460億 | -2.3% |
| 2021/09 | - | | - | | 1499億 | +2.7% |
| 2021/12 | - | | - | | 1505億 | +0.4% |
| 2022/03 | - | | 9.19億 | +256.2% | 1523億 | +1.2% |
| 2022/06 | - | | - | | 1489億 | -2.2% |
| 2022/09 | - | | - | | 1505億 | +1.1% |
| 2022/12 | - | | - | | 1384億 | -8% |
| 2023/03 | - | | 8.82億 | -4% | 1463億 | +5.7% |
| 2023/06 | - | | - | | 1442億 | -1.4% |
| 2023/09 | - | | - | | 1479億 | +2.6% |
| 2023/12 | - | | - | | 1520億 | +2.8% |
| 2024/03 | - | | 6.59億 | -25.3% | 1570億 | +3.3% |
| 2024/06 | - | | - | | 1534億 | -2.3% |
| 2024/09 | - | | - | | 1581億 | +3% |
| 2024/12 | - | | - | | 1539億 | -2.6% |
| 2025/03 | - | | 4.55億 | -31% | 1572億 | +2.2% |
| 2025/06 | - | | - | | 1568億 | -0.3% |
