月份 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
次数 | 0 | 1 | 3 | 32 | 69 | 93 | 134 | 119 | 97 | 29 | 10 | 0 |
比例 | 0.00% | 0.20% | 0.50% | 5.60% | 12.00% | 16.20% | 23.40% | 20.80% | 16.90% | 5.10% | 1.70% | 0.00% |