営業費用、海底線設備（純額）
- 【期間】
| 年度 | 営業費用 | 海底線設備（純額） |
|---|
| 2008/03 | 0.77兆 | | 227億 | |
| 2009/03 | 1.07兆 | +37.5% | 183億 | -19.2% |
| 2010/03 | 1.04兆 | -2.7% | 121億 | -34.1% |
| 2011/03 | 1.08兆 | +4% | 95.4億 | -21.1% |
| 2012/03 | 1.25兆 | +16% | 65.2億 | -31.6% |
| 2013/03 | 1.31兆 | +4.8% | 51.2億 | -21.4% |
| 2014/03 | 1.84兆 | +40.9% | 31.6億 | -38.4% |
| 2015/03 | 1.9兆 | +2.8% | 24億 | -24.1% |
| 2016/03 | 1.38兆 | -27.1% | 21.9億 | -8.5% |
| 2017/03 | 1.29兆 | -6.3% | 53.7億 | +144.7% |
| 2018/03 | 1.41兆 | +9.2% | 45.4億 | -15.4% |
| 2019/03 | 1.46兆 | +3.1% | 38.2億 | -15.9% |
| 2020/03 | 1.44兆 | -1.4% | 34.8億 | -8.9% |
| 2021/03 | 1.42兆 | -1.4% | 29.1億 | -16.3% |
| 2022/03 | 1.5兆 | +5.9% | 24.1億 | -17.1% |
| 2023/03 | 1.41兆 | -5.9% | 20.2億 | -16.3% |
| 2024/03 | 1.31兆 | -7.5% | 30億 | +48.7% |
