Rank	Countries/Territories	Count	Percent
1	United States	818	52.1%
2	China	303	19.3%
3	Germany	114	7.3%
4	India	99	6.3%
5	Canada	22	1.4%
6	Russia	20	1.3%
7	United Kingdom	17	1.1%
8	Latvia	15	1%
9	Spain	13	0.8%
10	Israel	11	0.7%
11	Mexico	10	0.6%
12	Australia	9	0.6%
13	Brazil	9	0.6%
14	Thailand	9	0.6%
15	France	8	0.5%
16	Austria	7	0.4%
17	Japan	7	0.4%
18	Korea, Republic of	6	0.4%
19	Singapore	6	0.4%
20	Cyprus	6	0.4%
21	Romania	5	0.3%
22	Ireland	5	0.3%
23	Netherlands	5	0.3%
24	Italy	4	0.3%
25	Poland	3	0.2%
26	Malaysia	3	0.2%
27	Turkey	3	0.2%
28	Ukraine	3	0.2%
29	Taiwan	3	0.2%
30	Tanzania, United Republic of	3	0.2%
31	Uruguay	3	0.2%
32	Slovakia	2	0.1%
33	Nigeria	2	0.1%
34	Kyrgyzstan	2	0.1%
35	Indonesia	2	0.1%
36	Colombia	2	0.1%
37	Argentina	2	0.1%
38	Belgium	1	0.1%
39	Croatia	1	0.1%
40	Denmark	1	0.1%
41	Djibouti	1	0.1%
42	Greece	1	0.1%
43	Kuwait	1	0.1%
44	Oman	1	0.1%
45	Peru	1	0.1%
46	Sweden	1	0.1%
47	Switzerland	1	0.1%