Development Projects In Progress And Development Projects In Progress And Liabilities And Net Dredger Net、浚渫船（純額）、全事業営業利益
- 【期間】
| 年度 | Development Projects In Progress And Development Projects In Progress And Liabilities And Net Dredger Net | 浚渫船（純額） | 全事業営業利益 |
|---|
| 2008/03 | - | | 17.6億 | | 88.4億 | |
| 2009/03 | - | | 12.6億 | -28.3% | 108億 | +22.4% |
| 2009/12 | - | | - | | 46.7億 | -56.9% |
| 2010/03 | - | | 10.1億 | -20.1% | 108億 | +131.4% |
| 2010/06 | - | | - | | 12.9億 | -88.1% |
| 2010/09 | - | | - | | 28.6億 | +122.4% |
| 2010/12 | - | | - | | 57億 | +99.5% |
| 2011/03 | - | | 9.4億 | -6.9% | 97.8億 | +71.6% |
| 2011/06 | - | | - | | 14.3億 | -85.4% |
| 2011/09 | - | | - | | 46.3億 | +224.7% |
| 2011/12 | - | | - | | 65.1億 | +40.4% |
| 2012/03 | - | | 5.4億 | -42.6% | 89.8億 | +38.1% |
| 2012/06 | - | | - | | 1.54億 | -98.3% |
| 2012/09 | - | | - | | 24.4億 | 大幅増 |
| 2012/12 | - | | - | | 30.9億 | +26.4% |
| 2013/03 | - | | 7.42億 | +37.4% | 64.6億 | +109.4% |
| 2013/06 | - | | - | | 11億 | -83% |
| 2013/09 | - | | - | | 43.2億 | +293.4% |
| 2013/12 | - | | - | | 70.3億 | +62.9% |
| 2014/03 | - | | 10.9億 | +46.6% | 99億 | +40.8% |
| 2014/06 | - | | - | | -5.78億 | 赤転 |
| 2014/09 | - | | - | | 32億 | 黒転 |
| 2014/12 | - | | - | | 65.1億 | +103.1% |
| 2015/03 | - | | 9.35億 | -14.1% | 123億 | +88.9% |
| 2015/06 | - | | - | | 41.2億 | -66.5% |
| 2015/09 | - | | - | | 84.5億 | +105% |
| 2015/12 | - | | - | | 165億 | +95.2% |
| 2016/03 | - | | 7.17億 | -23.3% | 206億 | +25.1% |
| 2016/06 | - | | - | | 74.3億 | -64% |
| 2016/09 | - | | - | | 117億 | +57.1% |
| 2016/12 | - | | - | | 164億 | +40.9% |
| 2017/03 | - | | 5.87億 | -18.1% | 243億 | +47.6% |
| 2017/06 | - | | - | | 65億 | -73.2% |
| 2017/09 | - | | - | | 134億 | +106.6% |
| 2017/12 | - | | - | | 209億 | +55.8% |
| 2018/03 | - | | 4.81億 | -18.1% | 276億 | +31.9% |
| 2018/06 | - | | - | | 66.1億 | -76.1% |
| 2018/09 | - | | - | | 151億 | +128.7% |
| 2018/12 | - | | - | | 208億 | +37.4% |
| 2019/03 | - | | 4.14億 | -13.9% | 292億 | +40.8% |
| 2019/06 | - | | - | | 82.3億 | -71.9% |
| 2019/09 | - | | - | | 172億 | +108.7% |
| 2019/12 | - | | - | | 258億 | +50.4% |
| 2020/03 | - | | 4.17億 | +0.7% | 332億 | +28.4% |
| 2020/06 | - | | - | | 81.8億 | -75.3% |
| 2020/09 | - | | - | | 150億 | +83% |
| 2020/12 | - | | - | | 221億 | +47.6% |
| 2021/03 | - | | 2.58億 | -38.1% | 305億 | +37.9% |
| 2021/06 | - | | - | | 56.1億 | -81.6% |
| 2021/09 | - | | - | | 118億 | +110.8% |
| 2021/12 | - | | - | | 130億 | +9.6% |
| 2022/03 | - | | 9.19億 | +256.2% | 159億 | +23% |
| 2022/06 | - | | - | | 38.1億 | -76.1% |
| 2022/09 | - | | - | | 66.7億 | +75% |
| 2022/12 | - | | - | | -73.2億 | 赤転 |
| 2023/03 | - | | 8.82億 | -4% | 41.2億 | 黒転 |
| 2023/06 | - | | - | | 66.8億 | +62.2% |
| 2023/09 | - | | - | | 133億 | +99.7% |
| 2023/12 | - | | - | | 207億 | +55.4% |
| 2024/03 | - | | 6.59億 | -25.3% | 292億 | +40.7% |
| 2024/06 | - | | - | | 72.1億 | -75.3% |
| 2024/09 | - | | - | | 151億 | +109.4% |
| 2024/12 | - | | - | | 148億 | -2.2% |
| 2025/03 | - | | 4.55億 | -31% | 217億 | +46.9% |
| 2025/06 | - | | - | | 103億 | -52.6% |
