2018 | Number of total visits
Rank | Countries/Territories | Count | Percent |
1 | United States | 30 | 57.7% |
2 | China | 10 | 19.2% |
3 | India | 3 | 5.8% |
4 | Iran | 2 | 3.8% |
5 | Republic of Korea | 2 | 3.8% |
6 | Taiwan | 2 | 3.8% |
7 | Belgium | 1 | 1.9% |
8 | Canada | 1 | 1.9% |
9 | Poland | 1 | 1.9% |