Rank	Countries/Territories	Count	Percent
1	United States	821	42.4%
2	China	453	23.4%
3	Germany	90	4.6%
4	India	57	2.9%
5	Japan	49	2.5%
6	Canada	29	1.5%
7	Iran, Islamic Republic of	28	1.4%
8	Brazil	24	1.2%
9	United Kingdom	24	1.2%
10	Singapore	22	1.1%
11	Korea, Republic of	21	1.1%
12	Ireland	19	1%
13	Russia	19	1%
14	Spain	19	1%
15	Latvia	18	0.9%
16	Italy	17	0.9%
17	Netherlands	16	0.8%
18	Hong Kong	16	0.8%
19	Egypt	16	0.8%
20	Mexico	14	0.7%
21	France	13	0.7%
22	Taiwan	13	0.7%
23	Sweden	12	0.6%
24	Australia	12	0.6%
25	Thailand	11	0.6%
26	Turkey	10	0.5%
27	Czech Republic	10	0.5%
28	Portugal	9	0.5%
29	Belgium	8	0.4%
30	Israel	8	0.4%
31	Ukraine	5	0.3%
32	Uzbekistan	5	0.3%
33	Qatar	4	0.2%
34	Poland	4	0.2%
35	Denmark	4	0.2%
36	Greece	4	0.2%
37	Argentina	3	0.2%
38	Kuwait	3	0.2%
39	Romania	3	0.2%
40	Serbia	2	0.1%
41	Switzerland	2	0.1%
42	Slovakia	2	0.1%
43	Indonesia	2	0.1%
44	Nepal	2	0.1%
45	Norway	2	0.1%
46	Cyprus	2	0.1%
47	Bahrain	1	0.1%
48	Bangladesh	1	0.1%
49	Colombia	1	0.1%
50	Pakistan	1	0.1%
51	Philippines	1	0.1%
52	Mauritius	1	0.1%
53	South Africa	1	0.1%
54	Turkmenistan	1	0.1%
55	Syrian Arab Republic	1	0.1%
56	Viet Nam	1	0.1%