Development Projects In Progress And Development Projects In Progress And Development Projects In Progress And Deferred Assets Net、浚渫船（純額）、税引前当年度純利益
- 【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） | 税引前当年度純利益 |
|---|
| 2008/03 | - | | 17.6億 | | 43.3億 | |
| 2009/03 | - | | 12.6億 | -28.3% | 3.3億 | -92.4% |
| 2009/12 | - | | - | | -1.92億 | 赤転 |
| 2010/03 | - | | 10.1億 | -20.1% | 8.52億 | 黒転 |
| 2010/06 | - | | - | | 2.09億 | -75.5% |
| 2010/09 | - | | - | | 18.8億 | +801.4% |
| 2010/12 | - | | - | | 37.3億 | +97.8% |
| 2011/03 | - | | 9.4億 | -6.9% | 55.2億 | +48% |
| 2011/06 | - | | - | | 13.1億 | -76.3% |
| 2011/09 | - | | - | | 36.9億 | +181.3% |
| 2011/12 | - | | - | | 46.3億 | +25.7% |
| 2012/03 | - | | 5.4億 | -42.6% | 63.1億 | +36.2% |
| 2012/06 | - | | - | | 1.56億 | -97.5% |
| 2012/09 | - | | - | | 12.3億 | +686.5% |
| 2012/12 | - | | - | | 21億 | +71.1% |
| 2013/03 | - | | 7.42億 | +37.4% | 50.2億 | +139.1% |
| 2013/06 | - | | - | | 9.02億 | -82% |
| 2013/09 | - | | - | | 34.8億 | +285.9% |
| 2013/12 | - | | - | | 65.5億 | +88.3% |
| 2014/03 | - | | 10.9億 | +46.6% | 87.4億 | +33.4% |
| 2014/06 | - | | - | | -5.85億 | 赤転 |
| 2014/09 | - | | - | | 33.6億 | 黒転 |
| 2014/12 | - | | - | | 66.7億 | +98.5% |
| 2015/03 | - | | 9.35億 | -14.1% | 102億 | +52.7% |
| 2015/06 | - | | - | | 39.4億 | -61.2% |
| 2015/09 | - | | - | | 77.8億 | +97.1% |
| 2015/12 | - | | - | | 109億 | +40.3% |
| 2016/03 | - | | 7.17億 | -23.3% | 142億 | +30.6% |
| 2016/06 | - | | - | | 68.7億 | -51.8% |
| 2016/09 | - | | - | | 107億 | +56.1% |
| 2016/12 | - | | - | | 163億 | +51.7% |
| 2017/03 | - | | 5.87億 | -18.1% | 230億 | +41.7% |
| 2017/06 | - | | - | | 67.2億 | -70.8% |
| 2017/09 | - | | - | | 138億 | +104.8% |
| 2017/12 | - | | - | | 206億 | +50.1% |
| 2018/03 | - | | 4.81億 | -18.1% | 253億 | +22.5% |
| 2018/06 | - | | - | | 67.5億 | -73.3% |
| 2018/09 | - | | - | | 151億 | +123.4% |
| 2018/12 | - | | - | | 184億 | +22.1% |
| 2019/03 | - | | 4.14億 | -13.9% | 266億 | +44.2% |
| 2019/06 | - | | - | | 82.4億 | -69% |
| 2019/09 | - | | - | | 175億 | +112% |
| 2019/12 | - | | - | | 260億 | +48.7% |
| 2020/03 | - | | 4.17億 | +0.7% | 325億 | +24.9% |
| 2020/06 | - | | - | | 85億 | -73.8% |
| 2020/09 | - | | - | | 147億 | +73.4% |
| 2020/12 | - | | - | | 214億 | +45.5% |
| 2021/03 | - | | 2.58億 | -38.1% | 302億 | +40.7% |
| 2021/06 | - | | - | | 61.7億 | -79.5% |
| 2021/09 | - | | - | | 120億 | +94.1% |
| 2021/12 | - | | - | | 131億 | +9% |
| 2022/03 | - | | 9.19億 | +256.2% | 161億 | +23.1% |
| 2022/06 | - | | - | | 45.4億 | -71.7% |
| 2022/09 | - | | - | | 69.4億 | +52.7% |
| 2022/12 | - | | - | | -98億 | 赤転 |
| 2023/03 | - | | 8.82億 | -4% | 16.7億 | 黒転 |
| 2023/06 | - | | - | | 68.5億 | +309.9% |
| 2023/09 | - | | - | | 129億 | +89% |
| 2023/12 | - | | - | | 186億 | +43.5% |
| 2024/03 | - | | 6.59億 | -25.3% | 274億 | +47.5% |
| 2024/06 | - | | - | | 73.3億 | -73.3% |
| 2024/09 | - | | - | | 145億 | +98.1% |
| 2024/12 | - | | - | | 148億 | +2.2% |
| 2025/03 | - | | 4.55億 | -31% | 193億 | +29.9% |
| 2025/06 | - | | - | | 99.9億 | -48.2% |
| 2025/09 | - | | - | | 250億 | +150.6% |
