|
|
| 263 | ||
| 168 | ||
| 151 | ||
| 145 | ||
| 46 | ||
| 39 | ||
| 32 | ||
| 31 | ||
| 17 | ||
| 17 | ||
| 9 | ||
| 8 | ||
| 8 | ||
| 7 | ||
| 4 | ||
| 3 | ||
| 3 | ||
| 2 | ||
| 2 | ||
| 1 |
| 179 | ||
| 107 | ||
| 90 | ||
| 87 | ||
| 75 | ||
| 50 | ||
| 47 | ||
| 44 | ||
| 40 | ||
| 17 | ||
| 17 | ||
| 17 | ||
| 16 | ||
| 14 | ||
| 10 | ||
| 9 | ||
| 8 | ||
| 4 | ||
| 3 | ||
| 3 | ||
| 3 | ||
| 2 | ||
| 1 | ||
| 1 | ||
| 1 |
| 1 | 1 | 16 | 19 | 22 | 12 | 46 | 137 | 123 | 107 | 87 | 72 | 37 | 27 |
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|
|
|
|
|
|
|
|
|
|
|
|
|
| 81 | 98 | 79 | 86 | 73 | 40 | 23 | 39 | 27 | 25 | 67 | 69 |
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| WINTER | 246 | |
| SPRING | 233 | |
| FALL | 119 | |
| SUMMER | 101 |
| United States | 306 | |
| Canada | 63 | |
| Russia | 24 | |
| Norway | 22 | |
| Finland | 16 | |
| Iceland | 9 | |
| Svalbard and Jan Mayen | 6 | |
| Sweden | 5 | |
| United Kingdom | 4 | |
| France | 2 | |
| Greenland | 2 | |
| Italy | 2 | |
| Spain | 2 | |
| Afghanistan | 1 | |
| Antarctica | 1 | |
| Japan | 1 | |
| Kazakhstan | 1 | |
| Mexico | 1 | |
| Pakistan | 1 | |
| Peru | 1 | |
| Switzerland | 1 | |
| Turkey | 1 |
Observations from Members