Rank	Countries/Territories	Count	Percent
1	United States	520	39.8%
2	China	348	26.7%
3	Germany	64	4.9%
4	India	38	2.9%
5	Iran, Islamic Republic of	33	2.5%
6	Lithuania	31	2.4%
7	United Kingdom	22	1.7%
8	Netherlands	19	1.5%
9	Ireland	18	1.4%
10	Hong Kong	17	1.3%
11	Australia	16	1.2%
12	Canada	16	1.2%
13	Japan	15	1.1%
14	Cyprus	10	0.8%
15	Kuwait	8	0.6%
16	Korea, Republic of	7	0.5%
17	Greece	7	0.5%
18	Egypt	7	0.5%
19	Switzerland	7	0.5%
20	Singapore	7	0.5%
21	Romania	6	0.5%
22	Saudi Arabia	6	0.5%
23	France	6	0.5%
24	Denmark	6	0.5%
25	Taiwan	5	0.4%
26	Turkey	5	0.4%
27	Mongolia	4	0.3%
28	Georgia	4	0.3%
29	Colombia	4	0.3%
30	Croatia	3	0.2%
31	Brazil	3	0.2%
32	New Zealand	3	0.2%
33	Latvia	3	0.2%
34	Thailand	3	0.2%
35	Russia	3	0.2%
36	Norway	2	0.2%
37	Oman	2	0.2%
38	South Africa	2	0.2%
39	Spain	2	0.2%
40	Sweden	2	0.2%
41	Tanzania, United Republic of	2	0.2%
42	Mexico	2	0.2%
43	Israel	2	0.2%
44	Iraq	2	0.2%
45	Indonesia	2	0.2%
46	Bahrain	2	0.2%
47	Czech Republic	2	0.2%
48	Estonia	1	0.1%
49	Italy	1	0.1%
50	Jordan	1	0.1%
51	Nigeria	1	0.1%
52	Malaysia	1	0.1%
53	United Arab Emirates	1	0.1%
54	Poland	1	0.1%