| 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 | 2026/03 | |
| 売上高 | 53,247 | 53,874 | 56,273 | 56,897 | 58,718 | 60,860 | 62,917 | 64,145 | 66,171 | 64,204 | 55,074 | 53,915 | 55,715 | 57,077 | 55,534 |
| 売上成長率（％） | - | ||||||||||||||
| 売上原価 | - | - | - | 34,263 | 34,510 | 35,368 | 36,927 | 38,037 | 39,691 | 37,891 | 36,935 | 38,185 | 39,271 | 40,591 | 39,749 |
| 売上総利益 | - | - | - | 22,633 | 24,207 | 25,491 | 25,989 | 26,107 | 26,480 | 26,313 | 18,139 | 15,730 | 16,444 | 16,486 | 15,785 |
| 売上総利益率（％） | - | - | - | ||||||||||||
| 営業利益率 (%) | - | - | - | ||||||||||||
| 営業費用 | - | - | - | 18,372 | 19,234 | 20,139 | 20,592 | 20,893 | 21,991 | 21,995 | 14,986 | 14,480 | 14,913 | 15,355 | 14,318 |
| 営業利益 | - | - | - | 4,261 | 4,973 | 5,352 | 5,396 | 5,214 | 4,489 | 4,317 | 3,152 | 1,249 | 1,530 | 1,131 | 1,466 |
| 経常（税引前）利益 | 3,853 | 3,967 | 4,404 | 4,561 | 5,377 | 5,703 | 5,728 | 5,546 | 4,838 | 4,711 | 3,506 | 1,558 | 1,881 | 1,554 | 1,900 |
| 経常（税引前）利益率（％） | 7.2 | 7.4 | 7.8 | 8 | 9.2 | 9.4 | 9.1 | 8.6 | 7.3 | 7.3 | 6.4 | 2.9 | 3.4 | 2.7 | 3.4 |
| 法人税等合計 | - | - | - | 1,668 | 1,819 | 1,725 | 1,490 | 2,083 | 1,720 | 1,314 | 1,010 | 681 | 486 | 307 | 273 |
| 実効税率（％） | - | - | - | ||||||||||||
| 純利益 | 1,888 | 1,967 | 2,330 | 3,014 | 3,920 | 3,791 | 4,023 | 4,189 | 3,100 | 3,405 | 2,115 | 1,406 | 1,110 | 951 | 1,423 |
| 一株あたり利益 | 65.56 | 71.96 | 76.92 | 94.36 | 130.45 | 126.92 | 134.57 | 140.02 | 103.58 | 113.7 | 71.03 | 49.09 | 39 | 33.44 | 50.18 |
| 希薄化後一株あたり利益 | - | - | - | - | - | 126.82 | 134.42 | 139.89 | 103.53 | - | - | - | - | - | - |
| 配当性向（%） | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |
| 一株あたり配当金 | - | - | - | - | - | - | - | - | 40 | 41 | 45 | 46 | 46 | 46 | 46 |