| （単位：千ドル） | 現金 + 有価証券 | 前年比（％） |
|---|---|---|
| 1Q20 | 5,206 | -8.5% |
| 4Q19 | 5,095 | -52.4% |
| 2Q19 | 4,462 | -38.0% |
| 1Q19 | 5,689 | -19.1% |
| 4Q18 | 10,704 | +31.4% |
| 3Q18 | 8,623 | -6.7% |
| 2Q18 | 7,191 | -33.0% |
| 1Q18 | 7,030 | -57.9% |
| 4Q17 | 8,144 | -46.7% |
| 3Q17 | 9,245 | -56.2% |
| 2Q17 | 10,738 | +490.3% |
| 1Q17 | 16,717 | +624.9% |
| 4Q16 | 15,270 | +1031.9% |
| 3Q16 | 21,100 | +1090.1% |
| 2Q16 | 1,819 | +15.2% |
| 1Q16 | 2,306 | -32.5% |
| 4Q15 | 1,349 | -80.7% |
| 3Q15 | 1,773 | -90.8% |
| 2Q15 | 1,579 | -91.4% |
| 1Q15 | 3,415 | -82.1% |
| 4Q14 | 7,003 | -62.5% |
| 3Q14 | 19,261 | +100.4% |
| 2Q14 | 18,420 | +0.2% |
| 1Q14 | 19,065 | +3.1% |
| 4Q13 | 18,674 | +0.1% |
| 3Q13 | 9,613 | -43.7% |
| 2Q13 | 18,391 | -0.9% |
| 1Q13 | 18,488 | -3.6% |
| 4Q12 | 18,664 | +2.7% |
| 3Q12 | 17,081 | +10.0% |
| 2Q12 | 18,549 | +31.0% |
| 1Q12 | 19,172 | - |
| 4Q11 | 18,173 | - |
| 3Q11 | 15,527 | - |
| 2Q11 | 14,160 | - |