| （単位：千ドル） | 現金 + 有価証券 | 前年比（％） |
|---|---|---|
| 4Q21 | 79,236 | +370.5% |
| 3Q21 | 93,927 | +585.1% |
| 2Q21 | 16,050 | -19.8% |
| 1Q21 | 26,667 | +36.0% |
| 4Q20 | 16,840 | +5.7% |
| 3Q20 | 13,710 | -35.0% |
| 2Q20 | 20,003 | -8.1% |
| 1Q20 | 19,610 | +57.4% |
| 4Q19 | 15,937 | +26.6% |
| 3Q19 | 21,106 | +67.4% |
| 2Q19 | 21,754 | +72.1% |
| 1Q19 | 12,462 | -5.5% |
| 4Q18 | 12,592 | -29.9% |
| 3Q18 | 12,609 | -39.4% |
| 2Q18 | 12,641 | -42.7% |
| 1Q18 | 13,190 | -52.4% |
| 4Q17 | 17,962 | -17.2% |
| 3Q17 | 20,791 | -8.5% |
| 2Q17 | 22,069 | -9.3% |
| 1Q17 | 27,706 | +4.2% |
| 4Q16 | 21,688 | +45.1% |
| 3Q16 | 22,727 | +11.7% |
| 2Q16 | 24,334 | +29.1% |
| 1Q16 | 26,580 | +23.8% |
| 4Q15 | 14,947 | -33.3% |
| 3Q15 | 20,349 | +6.5% |
| 2Q15 | 18,842 | -14.9% |
| 1Q15 | 21,474 | +7.6% |
| 4Q14 | 22,405 | +39.7% |
| 3Q14 | 19,112 | +0.1% |
| 2Q14 | 22,135 | +13.1% |
| 1Q14 | 19,962 | -34.2% |
| 4Q13 | 16,040 | -25.6% |
| 3Q13 | 19,089 | -5.2% |
| 2Q13 | 19,572 | -55.9% |
| 1Q13 | 30,334 | +50.0% |
| 4Q12 | 21,561 | -39.1% |
| 3Q12 | 20,130 | +3.0% |
| 2Q12 | 44,363 | +98.9% |
| 1Q12 | 20,227 | - |
| 4Q11 | 35,407 | - |
| 3Q11 | 19,537 | - |
| 2Q11 | 22,299 | - |