Development Projects In Progress And Development Projects In Progress And Development Projects In Progress And Deferred Assets Net Net、売上高合計、浚渫船（純額）
- 【期間】
| 年度 | Development Projects In Progress And Development Projects In Progress And Development Projects In Progress And Deferred Assets Net Net | 売上高合計 | 浚渫船（純額） |
|---|
| 2008/03 | - | | 3528億 | | 17.6億 | |
| 2009/03 | - | | 3985億 | +12.9% | 12.6億 | -28.3% |
| 2010/03 | - | | 3248億 | -18.5% | 10.1億 | -20.1% |
| 2011/03 | - | | 3023億 | -6.9% | 9.4億 | -6.9% |
| 2012/03 | - | | 3280億 | +8.5% | 5.4億 | -42.6% |
| 2013/03 | - | | 3498億 | +6.7% | 7.42億 | +37.4% |
| 2014/03 | - | | 3812億 | +9% | 10.9億 | +46.6% |
| 2015/03 | - | | 4262億 | +11.8% | 9.35億 | -14.1% |
| 2016/03 | - | | 4916億 | +15.3% | 7.17億 | -23.3% |
| 2017/03 | - | | 5003億 | +1.8% | 5.87億 | -18.1% |
| 2018/03 | - | | 5269億 | +5.3% | 4.81億 | -18.1% |
| 2019/03 | - | | 5419億 | +2.9% | 4.14億 | -13.9% |
| 2020/03 | - | | 5738億 | +5.9% | 4.17億 | +0.7% |
| 2021/03 | - | | 4711億 | -17.9% | 2.58億 | -38.1% |
| 2022/03 | - | | 4582億 | -2.7% | 9.19億 | +256.2% |
| 2023/03 | - | | 5022億 | +9.6% | 8.82億 | -4% |
| 2024/03 | - | | 6177億 | +23% | 6.59億 | -25.3% |
| 2025/03 | - | | 7275億 | +17.8% | 4.55億 | -31% |
