Rank	Countries/Territories	Count	Percent
1	United States	387	36.7%
2	China	284	26.9%
3	Germany	97	9.2%
4	Iran, Islamic Republic of	48	4.5%
5	France	40	3.8%
6	Russia	24	2.3%
7	Japan	22	2.1%
8	Singapore	18	1.7%
9	Netherlands	17	1.6%
10	India	15	1.4%
11	Norway	10	0.9%
12	Canada	10	0.9%
13	Peru	8	0.8%
14	Korea, Republic of	8	0.8%
15	Lithuania	6	0.6%
16	Cyprus	6	0.6%
17	Ireland	5	0.5%
18	Hong Kong	5	0.5%
19	Indonesia	4	0.4%
20	New Zealand	3	0.3%
21	Poland	3	0.3%
22	Spain	3	0.3%
23	Australia	3	0.3%
24	Yemen	3	0.3%
25	Ukraine	3	0.3%
26	United Kingdom	2	0.2%
27	Brazil	2	0.2%
28	Colombia	2	0.2%
29	Egypt	2	0.2%
30	Taiwan	2	0.2%
31	Thailand	2	0.2%
32	Turkey	2	0.2%
33	Slovakia	2	0.2%
34	Mongolia	2	0.2%
35	Estonia	1	0.1%
36	Israel	1	0.1%
37	Italy	1	0.1%
38	Ecuador	1	0.1%
39	Argentina	1	0.1%