| （単位：千ドル） | 配当金の支払額 | 前年比（％） |
|---|---|---|
| 4Q19 | 34,946 | 0.0% |
| 3Q19 | 35,018 | +0.7% |
| 2Q19 | 36,230 | +3.7% |
| 1Q19 | 34,877 | +8.6% |
| 4Q18 | 34,933 | +9.0% |
| 3Q18 | 34,786 | +8.1% |
| 2Q18 | 34,930 | +8.5% |
| 1Q18 | 32,123 | +4.9% |
| 4Q17 | 32,061 | +4.3% |
| 3Q17 | 32,183 | +4.9% |
| 2Q17 | 32,207 | +4.8% |
| 1Q17 | 30,618 | -0.2% |
| 4Q16 | 30,750 | +0.3% |
| 3Q16 | 30,686 | -0.6% |
| 2Q16 | 30,734 | -3.2% |
| 1Q16 | 30,675 | -3.1% |
| 4Q15 | 30,656 | -3.1% |
| 3Q15 | 30,859 | -69.5% |
| 2Q15 | 31,754 | -48.9% |
| 1Q15 | 31,667 | -49.4% |
| 4Q14 | 31,640 | -48.9% |
| 3Q14 | 101,249 | +63.7% |
| 2Q14 | 62,083 | +11.9% |
| 1Q14 | 62,545 | +8.3% |
| 4Q13 | 61,937 | +14.2% |
| 3Q13 | 61,857 | +14.2% |
| 2Q13 | 55,478 | +13.3% |
| 1Q13 | 57,744 | +17.2% |
| 4Q12 | 54,225 | +11.3% |
| 3Q12 | 54,157 | +11.2% |
| 2Q12 | 48,952 | +11.3% |
| 1Q12 | 49,249 | +12.2% |
| 4Q11 | 48,709 | +11.9% |
| 3Q11 | 48,692 | +21.2% |
| 2Q11 | 43,977 | - |
| 1Q11 | 43,894 | - |
| 4Q10 | 43,517 | - |
| 3Q10 | 40,166 | - |