| （単位：千ドル） | 現金 + 有価証券 | 前年比（％） |
|---|---|---|
| 4Q21 | 16,884 | -19.1% |
| 3Q21 | 14,756 | -32.9% |
| 2Q21 | 21,459 | -1.2% |
| 1Q21 | 21,917 | -9.0% |
| 4Q20 | 20,869 | -18.0% |
| 3Q20 | 21,990 | -18.8% |
| 2Q20 | 21,716 | -23.7% |
| 1Q20 | 24,077 | -6.8% |
| 4Q19 | 25,457 | -8.2% |
| 3Q19 | 27,065 | +4.0% |
| 2Q19 | 28,471 | +17.6% |
| 1Q19 | 25,843 | +9.1% |
| 4Q18 | 27,742 | +27.4% |
| 3Q18 | 26,029 | +9.2% |
| 2Q18 | 24,211 | +15.7% |
| 1Q18 | 23,688 | -6.3% |
| 4Q17 | 21,778 | -26.7% |
| 3Q17 | 23,842 | -31.5% |
| 2Q17 | 20,917 | -42.5% |
| 1Q17 | 25,268 | -31.6% |
| 4Q16 | 29,724 | -21.6% |
| 3Q16 | 34,801 | -18.9% |
| 2Q16 | 36,354 | -24.7% |
| 1Q16 | 36,918 | -21.1% |
| 4Q15 | 37,932 | -26.2% |
| 3Q15 | 42,921 | -50.6% |
| 2Q15 | 48,290 | -40.4% |
| 1Q15 | 46,817 | -42.1% |
| 4Q14 | 51,377 | -54.4% |
| 3Q14 | 86,808 | -24.5% |
| 2Q14 | 81,071 | -32.2% |
| 1Q14 | 80,864 | -35.0% |
| 4Q13 | 112,582 | -16.8% |
| 3Q13 | 115,046 | -19.0% |
| 2Q13 | 119,559 | +10.8% |
| 1Q13 | 124,410 | +15.7% |
| 4Q12 | 135,287 | - |
| 3Q12 | 141,961 | - |
| 2Q12 | 107,872 | - |
| 1Q12 | 107,486 | - |