Rank	Countries/Territories	Count	Percent
1	United States	161	39.4%
2	China	115	28.1%
3	Germany	46	11.2%
4	Norway	14	3.4%
5	France	12	2.9%
6	Serbia	12	2.9%
7	Japan	6	1.5%
8	Cyprus	5	1.2%
9	Brazil	4	1%
10	Ireland	4	1%
11	Singapore	4	1%
12	India	3	0.7%
13	Armenia	2	0.5%
14	Canada	2	0.5%
15	Finland	2	0.5%
16	Iran, Islamic Republic of	2	0.5%
17	Romania	2	0.5%
18	Korea, Republic of	2	0.5%
19	Mongolia	2	0.5%
20	Morocco	2	0.5%
21	Taiwan	2	0.5%
22	United Kingdom	1	0.2%
23	Sweden	1	0.2%
24	Netherlands	1	0.2%
25	Russia	1	0.2%
26	Indonesia	1	0.2%