| （単位：百万円） | 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 | 85,797 | 85,909 | 90,652 | 87,539 | 85,996 | 86,079 | 90,812 | 86,260 | 85,364 | 80,958 | 88,420 | 77,260 | 78,863 | 81,192 |
| 売上原価 | - | - | - | 76,382 | 74,605 | 72,129 | 75,565 | 72,544 | 72,071 | 67,721 | 73,912 | 63,944 | 63,974 | 66,019 |
| 売上総利益 | - | - | - | 11,156 | 11,390 | 13,949 | 15,247 | 13,716 | 13,292 | 13,236 | 14,508 | 13,316 | 14,888 | 15,173 |
| 売上総利益率（％） | - | - | - | |||||||||||
| 営業費用 | - | - | - | 9,055 | 9,036 | 9,239 | 9,457 | 9,461 | 9,573 | 8,950 | 9,384 | 9,544 | 9,932 | 10,608 |
| 営業利益 | - | - | - | 2,100 | 2,354 | 4,710 | 5,789 | 4,254 | 3,719 | 4,286 | 5,123 | 3,771 | 4,956 | 4,564 |
| 経常（税引前）利益 | 2,101 | 2,389 | 2,010 | 1,963 | 2,326 | 4,655 | 5,891 | 4,366 | 3,894 | 4,509 | 5,531 | 4,275 | 5,417 | 5,111 |
| 法人税等合計 | - | - | - | -126 | 784 | 1,311 | 1,321 | 889 | 571 | 1,214 | 1,519 | 1,492 | 1,371 | 1,636 |
| 純利益 | 1,551 | 1,577 | 1,605 | 1,759 | 1,191 | 2,507 | 2,723 | 2,444 | 2,902 | 2,870 | 3,417 | 3,788 | 4,317 | 4,364 |
| 一株あたり利益 | 25.35 | 25.85 | 26.8 | 29.48 | 19.98 | 42.05 | 45.64 | 204.92 | 243.35 | 240.41 | 286.49 | 317.45 | 359.29 | 363.96 |
| 一株あたり配当金 | 5 | 6 | 7.5 | 7.5 | 7.5 | 10 | 13 | 55 | 55 | 60 | 70 | 85 | 110 | 160 |