Rank	Countries/Territories	Count	Percent
1	United States	491	41.5%
2	China	297	25.1%
3	Germany	93	7.9%
4	Iran, Islamic Republic of	31	2.6%
5	Japan	30	2.5%
6	Canada	25	2.1%
7	France	22	1.9%
8	Ukraine	21	1.8%
9	Netherlands	19	1.6%
10	Turkey	13	1.1%
11	Indonesia	11	0.9%
12	Australia	10	0.8%
13	Peru	9	0.8%
14	Israel	8	0.7%
15	Brazil	8	0.7%
16	Cyprus	8	0.7%
17	India	7	0.6%
18	Romania	7	0.6%
19	Spain	7	0.6%
20	Poland	6	0.5%
21	Thailand	6	0.5%
22	Singapore	5	0.4%
23	Nigeria	5	0.4%
24	Taiwan	4	0.3%
25	Uganda	4	0.3%
26	United Kingdom	3	0.3%
27	Norway	3	0.3%
28	Russia	3	0.3%
29	Denmark	3	0.3%
30	Ireland	2	0.2%
31	Hong Kong	2	0.2%
32	Egypt	2	0.2%
33	Pakistan	2	0.2%
34	Italy	2	0.2%
35	Korea, Republic of	2	0.2%
36	Trinidad and Tobago	2	0.2%
37	United Arab Emirates	1	0.1%
38	Malaysia	1	0.1%
39	Slovakia	1	0.1%
40	Switzerland	1	0.1%
41	Argentina	1	0.1%
42	Dominican Republic	1	0.1%
43	Colombia	1	0.1%
44	Bulgaria	1	0.1%
45	Chile	1	0.1%