| （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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 売上高 | 49,946 | 48,670 | 46,127 | 44,103 | 42,914 | 40,930 | 41,260 | 43,224 | 45,147 | 44,008 | 44,987 | 50,109 | 58,833 | 70,122 |
| 売上成長率（％） | - | |||||||||||||
| 営業費用 | 23,338 | 23,396 | 24,370 | 24,517 | 25,635 | 26,152 | 26,972 | 27,276 | 25,754 | 24,970 | 26,080 | 26,958 | 29,228 | 35,008 |
| 経常（税引前）利益 | 22,885 | 22,992 | 23,107 | 22,092 | 20,573 | 18,894 | 20,385 | 18,711 | 20,677 | 19,154 | 24,633 | 31,763 | 18,675 | 9,122 |
| 経常（税引前）利益率（％） | 45.82 | 47.24 | 50.09 | 50.09 | 47.94 | 46.16 | 49.41 | 43.29 | 45.8 | 43.52 | 54.76 | 63.39 | 31.74 | 13.01 |
| 法人税等合計 | 5,247 | 5,245 | 5,317 | 5,178 | 4,740 | 3,952 | 6,293 | 2,560 | 3,211 | 3,077 | 4,251 | 5,831 | 2,984 | 1,499 |
| 実効税率（％） | ||||||||||||||
| 純利益 | 17,638 | 17,747 | 17,790 | 16,914 | 15,833 | 14,942 | 14,092 | 16,151 | 17,466 | 16,077 | 20,382 | 25,932 | 15,691 | 7,623 |
| 純利益率（％） | ||||||||||||||
| 一株あたり利益 | 2.54 | 2.56 | 2.56 | 2.43 | 2.28 | 2.15 | 2.03 | 2.32 | 2.65 | 2.48 | - | 4.33 | 2.66 | 1.24 |
| 希薄化後一株あたり利益 | 2.54 | 2.55 | 2.55 | 2.43 | 2.28 | 2.15 | 2.03 | 2.32 | 2.65 | 2.48 | - | 4.33 | 2.66 | 1.24 |
| 配当性向（%） | - | - | - | - | - | |||||||||
| 一株あたり配当金 | 1 | 1.1 | 1.12 | 1.13 | 1.14 | - | - | - | - | 1.39 | 1.44 | 1.5 | 2.51 | 1.51 |