| （単位：千ドル） | 配当金の支払額 | 前年比（％） |
|---|---|---|
| 1Q20 | 36,868 | +8.2% |
| 4Q19 | 34,671 | +4.8% |
| 3Q19 | 35,323 | +4.7% |
| 2Q19 | 36,250 | +6.6% |
| 1Q19 | 34,081 | -0.3% |
| 4Q18 | 33,082 | +1.2% |
| 3Q18 | 33,731 | +1.3% |
| 2Q18 | 34,008 | +2.6% |
| 1Q18 | 34,189 | -0.7% |
| 4Q17 | 32,685 | +3.4% |
| 3Q17 | 33,283 | +4.1% |
| 2Q17 | 33,148 | +3.2% |
| 1Q17 | 34,423 | +7.8% |
| 4Q16 | 31,616 | +3.7% |
| 3Q16 | 31,976 | +2.3% |
| 2Q16 | 32,110 | +3.2% |
| 1Q16 | 31,934 | -2.9% |
| 4Q15 | 30,491 | +3.2% |
| 3Q15 | 31,271 | +4.8% |
| 2Q15 | 31,105 | +3.0% |
| 1Q15 | 32,891 | +49.6% |
| 4Q14 | 29,551 | +36.4% |
| 3Q14 | 29,834 | +37.3% |
| 2Q14 | 30,211 | +35.4% |
| 1Q14 | 21,985 | -0.7% |
| 4Q13 | 21,662 | +23.5% |
| 3Q13 | 21,736 | +22.7% |
| 2Q13 | 22,313 | +25.1% |
| 1Q13 | 22,136 | +40.3% |
| 4Q12 | 17,543 | +8.9% |
| 3Q12 | 17,717 | +10.5% |
| 2Q12 | 17,835 | - |
| 1Q12 | 15,782 | - |
| 4Q11 | 16,104 | - |
| 3Q11 | 16,033 | - |