| （単位：千ドル） | 利益剰余金 | 前年比（％） |
|---|---|---|
| 4Q23 | 70,646 | +4.3% |
| 3Q23 | 70,872 | +9.0% |
| 2Q23 | 69,328 | +11.5% |
| 1Q23 | 67,914 | +12.8% |
| 4Q22 | 67,727 | +19.1% |
| 3Q22 | 65,009 | +19.1% |
| 2Q22 | 62,187 | +20.7% |
| 1Q22 | 60,206 | +23.9% |
| 4Q21 | 56,852 | +23.4% |
| 3Q21 | 54,561 | +24.4% |
| 2Q21 | 51,527 | +24.5% |
| 1Q21 | 48,574 | +19.6% |
| 4Q20 | 46,063 | +16.7% |
| 3Q20 | 43,859 | +17.8% |
| 2Q20 | 41,380 | +16.5% |
| 1Q20 | 40,602 | +18.0% |
| 4Q19 | 39,470 | +18.4% |
| 3Q19 | 37,217 | +14.9% |
| 2Q19 | 35,528 | +16.7% |
| 1Q19 | 34,414 | +18.7% |
| 4Q18 | 33,328 | +21.5% |
| 3Q18 | 32,398 | +18.6% |
| 2Q18 | 30,442 | +16.7% |
| 1Q18 | 28,986 | +16.6% |
| 4Q17 | 27,441 | +15.3% |
| 3Q17 | 27,320 | +20.2% |
| 2Q17 | 26,092 | +21.2% |
| 1Q17 | 24,863 | +20.1% |
| 4Q16 | 23,790 | +21.0% |
| 3Q16 | 22,733 | +25.6% |
| 2Q16 | 21,535 | +27.6% |
| 1Q16 | 20,694 | +6.2% |
| 4Q15 | 19,657 | +9.2% |
| 3Q15 | 18,096 | +12.2% |
| 2Q15 | 16,876 | +14.4% |
| 1Q15 | 19,490 | +47.3% |
| 4Q14 | 18,005 | +49.2% |
| 3Q14 | 16,127 | +75.6% |
| 2Q14 | 14,755 | +116.7% |
| 1Q14 | 13,234 | +167.6% |
| 4Q13 | 12,065 | +193.0% |
| 3Q13 | 9,182 | +348.6% |
| 2Q13 | 6,809 | +303.1% |
| 1Q13 | 4,945 | +94.1% |
| 4Q12 | 4,118 | +106.8% |
| 3Q12 | 2,047 | -81.1% |
| 2Q12 | 1,689 | -87.4% |
| 1Q12 | 2,548 | - |
| 4Q11 | 1,991 | - |
| 3Q11 | 10,806 | - |
| 2Q11 | 13,374 | - |