Rank	Countries/Territories	Count	Percent
1	United States	454	41.3%
2	China	205	18.7%
3	Germany	101	9.2%
4	Russia	36	3.3%
5	India	31	2.8%
6	Netherlands	23	2.1%
7	France	22	2%
8	Japan	18	1.6%
9	Korea, Republic of	16	1.5%
10	Canada	16	1.5%
11	United Kingdom	16	1.5%
12	Mexico	13	1.2%
13	Australia	12	1.1%
14	Ireland	11	1%
15	Italy	10	0.9%
16	Iran, Islamic Republic of	8	0.7%
17	Iraq	8	0.7%
18	Malaysia	7	0.6%
19	Pakistan	7	0.6%
20	Singapore	7	0.6%
21	South Africa	7	0.6%
22	Sweden	6	0.5%
23	Indonesia	6	0.5%
24	Cyprus	6	0.5%
25	Turkey	6	0.5%
26	Ukraine	4	0.4%
27	Taiwan	4	0.4%
28	Spain	4	0.4%
29	Romania	4	0.4%
30	New Zealand	3	0.3%
31	Egypt	3	0.3%
32	Ethiopia	3	0.3%
33	Burundi	3	0.3%
34	Brazil	2	0.2%
35	Ecuador	2	0.2%
36	Hong Kong	2	0.2%
37	Saudi Arabia	2	0.2%
38	Sierra Leone	2	0.2%
39	Switzerland	2	0.2%
40	Thailand	2	0.2%
41	United Arab Emirates	1	0.1%
42	Norway	1	0.1%
43	Kuwait	1	0.1%
44	Latvia	1	0.1%