2021 | Number of total visits
Rank | Countries/Territories | Count | Percent |
1 | United States | 40 | 48.2% |
2 | China | 15 | 18.1% |
3 | Canada | 9 | 10.8% |
4 | Netherlands | 7 | 8.4% |
5 | United Kingdom | 4 | 4.8% |
6 | Germany | 4 | 4.8% |
7 | Iran, Islamic Republic of | 2 | 2.4% |
8 | France | 2 | 2.4% |