| （単位：千ドル） | 利益剰余金 | 前年比（％） |
|---|---|---|
| 2Q23 | 38,402 | +11.5% |
| 1Q23 | 36,843 | +9.1% |
| 4Q22 | 35,840 | +6.7% |
| 3Q22 | 34,325 | +2.3% |
| 2Q22 | 34,443 | +3.2% |
| 1Q22 | 33,783 | +3.3% |
| 4Q21 | 33,601 | +3.3% |
| 3Q21 | 33,542 | +6.3% |
| 2Q21 | 33,359 | +8.4% |
| 1Q21 | 32,714 | +9.5% |
| 4Q20 | 32,538 | +10.3% |
| 3Q20 | 31,562 | +10.6% |
| 2Q20 | 30,780 | +9.6% |
| 1Q20 | 29,863 | +7.8% |
| 4Q19 | 29,508 | +9.5% |
| 3Q19 | 28,526 | +6.3% |
| 2Q19 | 28,080 | +4.5% |
| 1Q19 | 27,704 | +3.3% |
| 4Q18 | 26,959 | +1.7% |
| 3Q18 | 26,846 | +4.6% |
| 2Q18 | 26,869 | +6.1% |
| 1Q18 | 26,817 | +9.9% |
| 4Q17 | 26,515 | +9.6% |
| 3Q17 | 25,671 | +11.2% |
| 2Q17 | 25,333 | +15.6% |
| 1Q17 | 24,394 | +16.2% |
| 4Q16 | 24,185 | +21.1% |
| 3Q16 | 23,092 | +21.0% |
| 2Q16 | 21,911 | +17.2% |
| 1Q16 | 20,986 | - |
| 4Q15 | 19,976 | +12.2% |
| 3Q15 | 19,090 | +9.7% |
| 2Q15 | 18,698 | - |
| 4Q14 | 17,801 | +6.8% |
| 3Q14 | 17,400 | +7.9% |
| 1Q14 | 16,872 | - |
| 4Q13 | 16,670 | +18.0% |
| 3Q13 | 16,122 | - |
| 4Q12 | 14,122 | - |