| 2012/03 | 2013/03 | 2014/03 | 2015/03 | 2016/03 | 2017/03 | 2018/03 | 2019/03 | 2020/03 | 2021/03 | 2022/03 | 2023/03 | 2024/03 | 2025/03 | |
| 売上高 | 578,299 | 591,197 | 599,273 | 594,834 | 601,499 | 592,617 | 592,087 | 583,582 | 590,892 | 583,550 | 503,354 | 525,603 | 547,059 | 561,173 |
| 売上原価 | - | - | - | 422,281 | 419,454 | 399,286 | 402,139 | 398,337 | 401,538 | 393,478 | 381,077 | 407,308 | 415,100 | 426,120 |
| 売上総利益 | - | - | - | 172,552 | 182,045 | 193,330 | 189,948 | 185,245 | 189,354 | 190,072 | 122,277 | 118,295 | 131,958 | 135,053 |
| 売上総利益率（％） | - | - | - | |||||||||||
| 営業利益 | - | - | - | 6,805 | 14,317 | 21,099 | 21,684 | 22,331 | 25,359 | 28,867 | 29,792 | 23,939 | 27,839 | 29,658 |
| 営業費用 | - | - | - | 165,746 | 167,728 | 172,231 | 168,263 | 162,913 | 163,995 | 161,204 | 92,484 | 94,355 | 104,119 | 105,395 |
| 経常（税引前）利益 | 13,187 | 10,551 | 12,395 | 8,232 | 14,959 | 21,960 | 22,355 | 23,174 | 25,867 | 30,109 | 31,127 | 25,218 | 28,104 | 29,864 |
| 法人税等合計 | - | - | - | 1,831 | 5,129 | 5,887 | 7,655 | 6,044 | 7,687 | 7,095 | 14,369 | 6,699 | 27,224 | 10,633 |
| 純利益 | 2,654 | 2,394 | 3,327 | 4,265 | 10,655 | 13,265 | 15,814 | 14,186 | 18,819 | 18,903 | 33,926 | 17,019 | 61,347 | 5,459 |
| 一株あたり利益 | 18.39 | 20.04 | 19.6 | 16.86 | 42.8 | 53.4 | 319.01 | 283.35 | 377.11 | 378.73 | 687.45 | 373.15 | 696.92 | 64.6 |
| 希薄化後一株あたり利益 | 18.34 | 19.98 | 19.54 | 16.81 | 42.67 | 53.25 | 318.27 | 282.7 | 376.36 | 378.01 | 686.33 | 372.61 | 696.09 | 64.53 |
| 配当性向（%） | - | - | - | - | - | - | - | - | ||||||
| 一株あたり配当金 | 7 | 7 | 7 | 7 | 7 | 9 | 50 | 55 | 60 | 70 | 80 | 90 | 60 | 90 |