| （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 | 9,179 | 8,570 | 9,657 | 10,508 | 11,316 | 13,288 | 14,001 | 13,229 | 13,479 | 13,186 | 13,922 | 13,986 | 15,884 | 16,041 |
| 売上原価 | - | - | - | 8,432 | 9,049 | 10,831 | 11,512 | 11,034 | 10,408 | 10,123 | 10,536 | 10,645 | 12,126 | 12,334 |
| 売上総利益 | - | - | - | 2,075 | 2,267 | 2,457 | 2,489 | 2,195 | 3,071 | 3,063 | 3,386 | 3,342 | 3,758 | 3,708 |
| 売上総利益率（％） | - | - | - | |||||||||||
| 営業費用 | - | - | - | 1,533 | 1,672 | 1,843 | 1,987 | 2,131 | 2,123 | 2,215 | 2,281 | 2,313 | 2,612 | 2,787 |
| 営業利益 | - | - | - | 541 | 593 | 613 | 501 | 63 | 946 | 848 | 1,105 | 1,029 | 1,145 | 920 |
| 経常（税引前）利益 | 49 | 325 | 459 | 667 | 607 | 604 | 683 | 78 | 975 | 999 | 1,123 | 1,056 | 1,202 | 962 |
| 法人税等合計 | - | - | - | 229 | 241 | 240 | 251 | 178 | 327 | 397 | 102 | 412 | 441 | 342 |
| 純利益 | -155 | 184 | 269 | 414 | 300 | 363 | 413 | 161 | 623 | 623 | 1,103 | 630 | 764 | 618 |
| 一株あたり利益 | -14.3 | 17.17 | 25.17 | 38.63 | 26.57 | 30.21 | 33.77 | 11.9 | 46.64 | 49.55 | 43.69 | 23.21 | 30.99 | 23.12 |
| 希薄化後一株あたり利益 | - | - | - | 38.31 | 26.28 | 29.96 | 32.81 | 11.1 | 45.77 | 48.97 | 43.57 | 23.15 | 30.99 | 23.08 |
| 配当性向（%） | - | - | - | - | - | - | - | - | ||||||
| 一株あたり配当金 | 5 | 5 | 5 | 5 | 5 | 8 | 8 | 15 | 16 | 17 | 12 | 12 | 12 | 12 |