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| January | February | March | April | May | June | July | August | September | October | November | December | Total |
Events with only one report | 4167 | 3640 | 3762 | 3257 | 3117 | 3151 | 4098 | 5751 | 4753 | 5310 | 6706 | 5240 | 52952 |
Events with 1< number of reports <= 10 | 1625 | 1468 | 1509 | 1260 | 1198 | 1222 | 1608 | 2404 | 2099 | 2198 | 3280 | 2127 | 21998 |
Events with 10< number of reports <= 25 | 197 | 168 | 170 | 149 | 115 | 103 | 154 | 178 | 220 | 216 | 320 | 202 | 2192 |
Events with 25< number of reports <= 50 | 53 | 63 | 69 | 42 | 29 | 46 | 56 | 46 | 91 | 90 | 118 | 60 | 763 |
Events with 50< number of reports < 100 | 32 | 36 | 35 | 26 | 25 | 17 | 29 | 30 | 44 | 43 | 54 | 37 | 408 |
Events with more than 100 reports | 25 | 32 | 27 | 22 | 11 | 17 | 19 | 18 | 32 | 36 | 43 | 25 | 307 |
Total | 6099 | 5407 | 5572 | 4756 | 4495 | 4556 | 5964 | 8427 | 7239 | 7893 | 10521 | 7691 | 78620 |