Rank	Countries/Territories	Count	Percent
1	United States	457	34%
2	China	370	27.5%
3	Germany	154	11.4%
4	India	52	3.9%
5	Japan	40	3%
6	Canada	38	2.8%
7	Korea, Republic of	32	2.4%
8	Israel	14	1%
9	Australia	14	1%
10	Ireland	11	0.8%
11	Russia	10	0.7%
12	United Kingdom	9	0.7%
13	Netherlands	9	0.7%
14	Moldova, Republic of	8	0.6%
15	Norway	8	0.6%
16	France	8	0.6%
17	Singapore	8	0.6%
18	Senegal	7	0.5%
19	Taiwan	7	0.5%
20	Egypt	7	0.5%
21	Afghanistan	7	0.5%
22	Thailand	6	0.4%
23	Hong Kong	5	0.4%
24	Brazil	4	0.3%
25	Peru	4	0.3%
26	Italy	4	0.3%
27	Slovakia	4	0.3%
28	Spain	4	0.3%
29	Romania	4	0.3%
30	Sweden	3	0.2%
31	Switzerland	3	0.2%
32	Ukraine	3	0.2%
33	Greece	3	0.2%
34	Argentina	3	0.2%
35	Chile	2	0.1%
36	Denmark	2	0.1%
37	Indonesia	2	0.1%
38	Iraq	2	0.1%
39	Malaysia	2	0.1%
40	Qatar	2	0.1%
41	Pakistan	2	0.1%
42	Mongolia	2	0.1%
43	Viet Nam	2	0.1%
44	Turkey	1	0.1%
45	Serbia	1	0.1%
46	Saudi Arabia	1	0.1%
47	Nigeria	1	0.1%
48	Mexico	1	0.1%
49	Georgia	1	0.1%
50	Czech Republic	1	0.1%
51	Belgium	1	0.1%