Rank	Countries/Territories	Count	Percent
1	United States	188	21.1%
2	China	187	20.9%
3	Germany	72	8.1%
4	India	70	7.8%
5	Korea, Republic of	28	3.1%
6	Singapore	28	3.1%
7	Brazil	22	2.5%
8	Spain	21	2.4%
9	United Kingdom	20	2.2%
10	France	17	1.9%
11	Netherlands	17	1.9%
12	Iran, Islamic Republic of	16	1.8%
13	Russia	16	1.8%
14	Ireland	15	1.7%
15	Mexico	15	1.7%
16	Italy	14	1.6%
17	Sweden	14	1.6%
18	Japan	13	1.5%
19	Turkey	12	1.3%
20	Canada	10	1.1%
21	Poland	9	1%
22	Nigeria	7	0.8%
23	Indonesia	7	0.8%
24	Australia	7	0.8%
25	Denmark	6	0.7%
26	Malaysia	6	0.7%
27	Bolivia, Plurinational State of	4	0.4%
28	Argentina	4	0.4%
29	Colombia	4	0.4%
30	Belgium	3	0.3%
31	Cyprus	3	0.3%
32	Ecuador	3	0.3%
33	Ghana	3	0.3%
34	Portugal	3	0.3%
35	Peru	3	0.3%
36	Jamaica	3	0.3%
37	Kyrgyzstan	2	0.2%
38	Israel	2	0.2%
39	Hong Kong	2	0.2%
40	Croatia	2	0.2%
41	Uganda	2	0.2%
42	Taiwan	2	0.2%
43	Tanzania, United Republic of	2	0.2%
44	Thailand	2	0.2%
45	Switzerland	1	0.1%
46	South Africa	1	0.1%
47	Uzbekistan	1	0.1%
48	Bangladesh	1	0.1%
49	Greece	1	0.1%
50	Finland	1	0.1%
51	Pakistan	1	0.1%