Rank	Countries/Territories	Count	Percent
1	United States	298	26%
2	China	207	18.1%
3	Australia	77	6.7%
4	India	60	5.2%
5	Denmark	46	4%
6	Iran, Islamic Republic of	39	3.4%
7	Spain	38	3.3%
8	Turkey	32	2.8%
9	Germany	31	2.7%
10	United Kingdom	21	1.8%
11	Netherlands	21	1.8%
12	Sweden	20	1.7%
13	Canada	19	1.7%
14	Japan	18	1.6%
15	Ireland	15	1.3%
16	Russia	15	1.3%
17	Switzerland	14	1.2%
18	France	12	1%
19		11	1%
20	Singapore	11	1%
21	Romania	11	1%
22	Poland	9	0.8%
23	Pakistan	9	0.8%
24	Colombia	9	0.8%
25	Korea, Republic of	7	0.6%
26	Israel	6	0.5%
27	Italy	6	0.5%
28	Brazil	6	0.5%
29	Austria	6	0.5%
30	Egypt	5	0.4%
31	Hungary	5	0.4%
32	Guam	5	0.4%
33	Mexico	5	0.4%
34	Uzbekistan	4	0.3%
35	Finland	4	0.3%
36	Cyprus	4	0.3%
37	Costa Rica	3	0.3%
38	Chile	3	0.3%
39	Portugal	3	0.3%
40	Norway	3	0.3%
41	Sri Lanka	2	0.2%
42	Thailand	2	0.2%
43	Belgium	2	0.2%
44	Argentina	2	0.2%
45	Estonia	2	0.2%
46	Hong Kong	2	0.2%
47	Greece	2	0.2%
48	Malaysia	2	0.2%
49	Jordan	2	0.2%
50	Indonesia	1	0.1%
51	Czech Republic	1	0.1%
52	Armenia	1	0.1%
53	Algeria	1	0.1%
54	Tunisia	1	0.1%
55	Taiwan	1	0.1%
56	Philippines	1	0.1%
57	United Arab Emirates	1	0.1%