| （単位：%） | 2010/12 | 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 | 3,958 | 4,306 | 4,880 | 5,170 | 4,871 | 5,266 | 5,435 | 5,539 | 5,658 | 5,755 | 4,608 | 5,117 | 5,291 | 5,659 | 5,964 |
| 売上成長率（％） | - | -19.9 | 11.1 | 3.4 | 6.9 | 5.4 | |||||||||
| 営業費用 | 2,213 | 2,371 | 2,659 | 2,754 | 2,485 | 2,597 | 2,714 | 2,736 | 2,747 | 2,847 | 2,636 | 2,704 | 2,708 | 2,852 | 2,871 |
| 営業利益 | 1,744 | 1,935 | 2,221 | 2,416 | 2,385 | 2,669 | 2,721 | 2,802 | 2,911 | 2,908 | 1,971 | 2,413 | 2,584 | 2,807 | 3,093 |
| 営業利益率 (%) | 42.8 | 47.2 | 48.8 | 49.6 | 51.9 | ||||||||||
| 法人税等合計 | 1 | 3 | 15 | 39 | 28 | 20 | - | - | - | - | - | - | - | - | - |
| 純利益 | 753 | 1,245 | 1,719 | 1,551 | 1,651 | 2,139 | 2,134 | 2,245 | 2,822 | 2,423 | 1,277 | 2,569 | 2,452 | 2,617 | 2,729 |
| 純利益率（％） | 27.7 | 50.2 | 46.3 | 46.2 | 45.8 | ||||||||||
| 一株あたり利益 | 2.1 | 3.48 | 4.72 | 4.24 | - | - | - | - | - | - | - | 6.84 | 6.52 | 6.98 | 7.26 |
| 希薄化後一株あたり利益 | 2.1 | 3.48 | 4.72 | 4.24 | - | - | - | - | - | - | - | 6.84 | 6.52 | 6.98 | 7.26 |
| 配当性向（%） | - | - | - | - | - | - | - | 85.5 | 105.8 | 106.7 | 111.6 | ||||
| 一株あたり配当金 | 2.6 | 3.5 | 4.1 | 4.65 | 5.15 | 6.05 | 6.5 | 7.15 | 7.9 | 8.3 | 6 | 5.85 | 6.9 | 7.45 | 8.1 |