| 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 | 631,854 | 666,272 | 723,212 | 759,713 | 742,194 | 722,384 | 783,933 | 807,755 | 799,559 | 830,240 | 780,557 | 912,896 | 900,149 | 944,961 | 972,783 |
| 売上成長率（％） | - | ||||||||||||||
| 売上原価 | - | - | - | 667,722 | 650,530 | 630,881 | 681,258 | 702,313 | 694,657 | 715,640 | 641,062 | 757,486 | 735,430 | 763,670 | 785,096 |
| 売上総利益 | - | - | - | 91,991 | 91,663 | 91,503 | 102,675 | 105,441 | 104,901 | 114,600 | 139,494 | 155,410 | 164,719 | 181,291 | 187,687 |
| 売上総利益率（％） | - | - | - | ||||||||||||
| 営業利益率 (%) | - | - | - | ||||||||||||
| 営業費用 | - | - | - | 73,838 | 73,639 | 76,472 | 78,557 | 80,215 | 85,734 | 92,683 | 104,231 | 122,038 | 134,100 | 142,212 | 142,959 |
| 営業利益 | - | - | - | 18,153 | 18,024 | 15,030 | 24,118 | 25,226 | 19,167 | 21,916 | 35,263 | 33,371 | 30,618 | 39,078 | 44,727 |
| 経常（税引前）利益 | 15,690 | 17,927 | 17,905 | 20,366 | 18,390 | 16,361 | 25,982 | 26,643 | 19,083 | 22,854 | 36,497 | 32,528 | 30,591 | 38,382 | 44,096 |
| 経常（税引前）利益率（％） | 2.5 | 2.7 | 2.5 | 2.7 | 2.5 | 2.3 | 3.3 | 3.3 | 2.4 | 2.8 | 4.7 | 3.6 | 3.4 | 4.1 | 4.5 |
| 法人税等合計 | - | - | - | 7,073 | 2,772 | 5,437 | 6,457 | 7,796 | 8,684 | 9,626 | 12,684 | 8,927 | 9,812 | 11,859 | 12,066 |
| 実効税率（％） | - | - | - | ||||||||||||
| 純利益 | 7,628 | 6,652 | 5,901 | 11,916 | 12,466 | 10,662 | 17,592 | 20,408 | 15,515 | 19,646 | 26,872 | 24,210 | 22,853 | 26,270 | 33,910 |
| 一株あたり利益 | 66.69 | 111.31 | 91.86 | 89.1 | 96.96 | 81.65 | 136.34 | 161.3 | 122.12 | 151.91 | 213.46 | 199.54 | 194.96 | 230.39 | 78.89 |
| 一株あたり配当金 | - | - | - | - | - | - | - | - | 44 | 46 | 54 | 70 | 80 | 90 | 100 |