Rank	Countries/Territories	Count	Percent
1	United States	477	40.9%
2	China	385	33%
3	Germany	123	10.5%
4	Canada	38	3.3%
5	Japan	31	2.7%
6	Australia	12	1%
7	Netherlands	12	1%
8	Ukraine	11	0.9%
9	France	11	0.9%
10	Argentina	8	0.7%
11	Singapore	7	0.6%
12	United Kingdom	6	0.5%
13	Cyprus	6	0.5%
14	Hong Kong	6	0.5%
15	Korea, Republic of	5	0.4%
16	Norway	5	0.4%
17	Latvia	4	0.3%
18	Switzerland	3	0.3%
19	Mongolia	3	0.3%
20	Iran, Islamic Republic of	2	0.2%
21	Ireland	2	0.2%
22	Belgium	2	0.2%
23	Brazil	1	0.1%
24	Georgia	1	0.1%
25	India	1	0.1%
26	Mexico	1	0.1%
27	Taiwan	1	0.1%
28	Russia	1	0.1%
29	South Africa	1	0.1%
30	Spain	1	0.1%