
Rank | Countries/Territories | Count | Percent |
1 | China | 57 | 34.8% |
2 | United States | 44 | 26.8% |
3 | Germany | 19 | 11.6% |
4 | Sweden | 12 | 7.3% |
5 | Japan | 10 | 6.1% |
6 | Ireland | 6 | 3.7% |
7 | Russia | 6 | 3.7% |
8 | Hong Kong | 4 | 2.4% |
9 | Netherlands | 3 | 1.8% |
10 | Taiwan | 2 | 1.2% |
11 | France | 1 | 0.6% |


Month | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | All year |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Count | 130 | 145 | 134 | 128 | 118 | 154 | 161 | 171 | 235 | 185 | 142 | 272 | 1975 |




