Rank	Countries/Territories	Count	Percent
1	United States	581	44.9%
2	China	287	22.2%
3	Germany	143	11.1%
4	Canada	60	4.6%
5	Japan	20	1.5%
6	Singapore	18	1.4%
7	Iran, Islamic Republic of	17	1.3%
8	Taiwan	15	1.2%
9	India	14	1.1%
10	Netherlands	12	0.9%
11	United Kingdom	12	0.9%
12	Korea, Republic of	10	0.8%
13	France	8	0.6%
14	Australia	8	0.6%
15	Thailand	8	0.6%
16	Turkey	8	0.6%
17	Cyprus	7	0.5%
18	Russia	6	0.5%
19	Brazil	5	0.4%
20	Indonesia	5	0.4%
21	Ireland	4	0.3%
22	Hong Kong	4	0.3%
23	Argentina	4	0.3%
24	Egypt	4	0.3%
25	Romania	4	0.3%
26	Malaysia	4	0.3%
27	Viet Nam	4	0.3%
28	Norway	3	0.2%
29	Poland	3	0.2%
30	Spain	3	0.2%
31	Philippines	2	0.2%
32	Mongolia	1	0.1%
33	Lithuania	1	0.1%
34	Luxembourg	1	0.1%
35	Saudi Arabia	1	0.1%
36	Qatar	1	0.1%
37	Croatia	1	0.1%
38	Austria	1	0.1%
39	Botswana	1	0.1%
40	Georgia	1	0.1%
41	Israel	1	0.1%
42	Ukraine	1	0.1%