2018 | Number of total visits
Rank | Countries/Territories | Count | Percent |
1 | United States | 15 | 40.5% |
2 | China | 12 | 32.4% |
3 | Norway | 3 | 8.1% |
4 | Slovakia | 3 | 8.1% |
5 | Taiwan | 1 | 2.7% |
6 | Republic of Korea | 1 | 2.7% |
7 | France | 1 | 2.7% |
8 | Germany | 1 | 2.7% |