Rank	Countries/Territories	Count	Percent
1	United States	412	44.9%
2	China	199	21.7%
3	Germany	97	10.6%
4	Japan	44	4.8%
5	Argentina	23	2.5%
6	United Kingdom	18	2%
7	Singapore	18	2%
8	Croatia	9	1%
9	Canada	9	1%
10	Brazil	8	0.9%
11	Cyprus	7	0.8%
12	Netherlands	7	0.8%
13	Norway	6	0.7%
14	Russia	5	0.5%
15	Korea, Republic of	5	0.5%
16	Ukraine	5	0.5%
17	Australia	5	0.5%
18	Spain	4	0.4%
19	Sweden	4	0.4%
20	Italy	3	0.3%
21	Ecuador	3	0.3%
22	Greece	3	0.3%
23	Iran, Islamic Republic of	3	0.3%
24	Ireland	2	0.2%
25	France	2	0.2%
26	Denmark	2	0.2%
27	Mexico	2	0.2%
28	Moldova, Republic of	2	0.2%
29	Taiwan	2	0.2%
30	Mongolia	1	0.1%
31	Malaysia	1	0.1%
32	Poland	1	0.1%
33	Austria	1	0.1%
34	Bangladesh	1	0.1%
35	Belgium	1	0.1%
36	Georgia	1	0.1%
37	Hong Kong	1	0.1%