| （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 | 83,361 | 85,367 | 85,799 | 84,186 | 82,325 | 79,212 | 78,739 | 77,151 | 75,444 | 77,712 | 78,618 | 81,120 | 84,947 | 84,104 |
| 売上原価 | - | - | - | 69,555 | 67,434 | 64,021 | 63,901 | 62,700 | 61,369 | 63,689 | 65,967 | 71,449 | 70,964 | 70,139 |
| 売上総利益 | - | - | - | 14,631 | 14,890 | 15,191 | 14,838 | 14,451 | 14,074 | 14,023 | 12,651 | 9,670 | 13,983 | 13,964 |
| 売上総利益率（％） | - | - | - | |||||||||||
| 営業費用 | - | - | - | 13,308 | 13,270 | 13,111 | 12,985 | 12,868 | 12,321 | 11,802 | 11,444 | 10,378 | 10,397 | 10,516 |
| 営業利益 | - | - | - | 1,323 | 1,619 | 2,079 | 1,853 | 1,582 | 1,752 | 2,221 | 1,207 | -707 | 3,585 | 3,448 |
| 経常（税引前）利益 | 2,486 | 2,772 | 2,425 | 1,290 | 1,422 | 1,882 | 1,906 | 1,605 | 1,745 | 2,248 | 1,267 | -645 | 3,702 | 3,629 |
| 法人税等合計 | - | - | - | 498 | 670 | 657 | 396 | 226 | 391 | 606 | 203 | 664 | 206 | 863 |
| 純利益 | 929 | 1,251 | 1,128 | 60 | 237 | 689 | 1,263 | 489 | 1,174 | 1,192 | 299 | -1,257 | 3,398 | 2,729 |
| 一株あたり利益 | 14.23 | 19.52 | 17.99 | 0.96 | 3.79 | 9.75 | 20.82 | 7.77 | 18.28 | 19.26 | 5.03 | -21.22 | 58.3 | 47.39 |
| 一株あたり配当金 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 5 | 8 | 10 |