Rank	Countries/Territories	Count	Percent
1	United States	479	40.4%
2	China	395	33.3%
3	Germany	123	10.4%
4	Canada	42	3.5%
5	Japan	31	2.6%
6	Australia	12	1%
7	Netherlands	12	1%
8	Ukraine	11	0.9%
9	France	11	0.9%
10	Argentina	8	0.7%
11	Cyprus	7	0.6%
12	Singapore	7	0.6%
13	United Kingdom	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	Russia	2	0.2%
21	Iran, Islamic Republic of	2	0.2%
22	Ireland	2	0.2%
23	Belgium	2	0.2%
24	Brazil	1	0.1%
25	Georgia	1	0.1%
26	India	1	0.1%
27	Mexico	1	0.1%
28	South Africa	1	0.1%
29	Spain	1	0.1%
30	Taiwan	1	0.1%