Rank	Countries/Territories	Count	Percent
1	United States	227	28.2%
2	China	122	15.2%
3	Germany	48	6%
4	India	41	5.1%
5	Australia	40	5%
6	Ukraine	30	3.7%
7	United Kingdom	25	3.1%
8	Japan	17	2.1%
9	Indonesia	14	1.7%
10	Tajikistan	13	1.6%
11	Netherlands	13	1.6%
12	Korea, Republic of	12	1.5%
13	Iran, Islamic Republic of	11	1.4%
14	Egypt	11	1.4%
15	France	10	1.2%
16	Canada	9	1.1%
17	Singapore	9	1.1%
18	Spain	9	1.1%
19	Philippines	8	1%
20	Taiwan	8	1%
21	Turkey	8	1%
22	Ireland	8	1%
23	Italy	8	1%
24	Iraq	7	0.9%
25	Thailand	7	0.9%
26	Russia	6	0.7%
27	Greece	6	0.7%
28	Hong Kong	6	0.7%
29	Malaysia	4	0.5%
30	Cuba	4	0.5%
31	Cyprus	4	0.5%
32	Nigeria	4	0.5%
33	Romania	4	0.5%
34	Serbia	4	0.5%
35	Lithuania	3	0.4%
36	Czech Republic	3	0.4%
37	Denmark	3	0.4%
38	Mauritius	3	0.4%
39	Guatemala	2	0.2%
40	Finland	2	0.2%
41	Bosnia and Herzegovina	2	0.2%
42	Brazil	2	0.2%
43	Cameroon	2	0.2%
44	Bahrain	2	0.2%
45	Mongolia	2	0.2%
46	Saudi Arabia	2	0.2%
47	South Africa	2	0.2%
48	Viet Nam	2	0.2%
49	United Arab Emirates	1	0.1%
50	Sri Lanka	1	0.1%
51	Switzerland	1	0.1%
52	Syrian Arab Republic	1	0.1%
53	Portugal	1	0.1%
54	Qatar	1	0.1%
55	Belgium	1	0.1%
56	Austria	1	0.1%
57	Argentina	1	0.1%
58	Ecuador	1	0.1%
59	Ethiopia	1	0.1%
60	Colombia	1	0.1%
61	Mexico	1	0.1%
62	Kuwait	1	0.1%
63	Israel	1	0.1%