| （単位：千ドル） | 2011/12 | 2012/12 | 2013/12 | 2014/12 | 2015/12 | 2016/12 | 2017/12 | 2018/12 | 2019/12 | 2020/12 | 2021/12 | 2022/12 | 2023/12 | 2024/12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 営業費用 | 51,548 | 51,836 | 53,203 | 54,028 | 57,430 | 59,609 | 62,705 | 65,055 | 67,450 | 70,678 | 78,048 | 81,530 | 93,048 | 97,268 |
| 経常（税引前）利益 | - | - | - | - | - | - | - | - | - | - | 64,404 | 62,913 | 37,520 | 37,358 |
| 法人税等合計 | 9,714 | 9,661 | 9,079 | 10,174 | 10,610 | 11,215 | 10,529 | 9,026 | 9,600 | 11,036 | 14,547 | 14,114 | 7,445 | 7,649 |
| 実効税率（％） | - | - | - | - | - | - | - | - | - | - | ||||
| 純利益 | 21,933 | 22,179 | 21,795 | 23,360 | 24,662 | 26,534 | 29,326 | 36,279 | 37,475 | 40,827 | 49,857 | 48,799 | 30,075 | 29,709 |
| 一株あたり利益 | 1.87 | 1.85 | 1.77 | 1.85 | 1.91 | 1.98 | 2.11 | 2.52 | 2.51 | 2.64 | 3.11 | 2.95 | 1.77 | 1.77 |
| 希薄化後一株あたり利益 | 1.87 | 1.85 | 1.77 | 1.85 | 1.91 | 1.97 | 2.1 | 2.5 | 2.5 | 2.64 | 3.1 | 2.95 | 1.77 | 1.77 |
| 配当性向（%） | - | |||||||||||||
| 一株あたり配当金 | 0.98 | 0.99 | 0.99 | 0.99 | 0.99 | 0.98 | 0.98 | 1 | 1.02 | 1.02 | 1.02 | 1.06 | 1.06 | - |