Rank	Countries/Territories	Count	Percent
1	United States	246	33.8%
2	China	129	17.7%
3	United Kingdom	76	10.5%
4	Germany	34	4.7%
5	Canada	27	3.7%
6	India	23	3.2%
7	Australia	18	2.5%
8	Singapore	17	2.3%
9	Japan	14	1.9%
10	Netherlands	14	1.9%
11	Turkey	12	1.7%
12	Pakistan	11	1.5%
13	Spain	8	1.1%
14	Korea, Republic of	7	1%
15	Iran, Islamic Republic of	7	1%
16	Bulgaria	7	1%
17	France	7	1%
18	Saudi Arabia	5	0.7%
19	Peru	4	0.6%
20	Mexico	4	0.6%
21	Hong Kong	3	0.4%
22	Malaysia	3	0.4%
23	Israel	3	0.4%
24	Italy	3	0.4%
25	Cyprus	3	0.4%
26	Austria	3	0.4%
27	Argentina	2	0.3%
28	Greece	2	0.3%
29	Ireland	2	0.3%
30	Latvia	2	0.3%
31	Norway	2	0.3%
32	Portugal	2	0.3%
33	Romania	2	0.3%
34	Russia	2	0.3%
35	Sweden	2	0.3%
36	Switzerland	2	0.3%
37	Taiwan	2	0.3%
38	Thailand	2	0.3%
39	Ukraine	2	0.3%
40	Slovakia	1	0.1%
41	South Africa	1	0.1%
42	Viet Nam	1	0.1%
43	Palestine, State of	1	0.1%
44	Moldova, Republic of	1	0.1%
45	Kenya	1	0.1%
46	Colombia	1	0.1%
47	Cote D'ivoire	1	0.1%
48	Croatia	1	0.1%
49	Algeria	1	0.1%
50	Bangladesh	1	0.1%
51	Belgium	1	0.1%
52	Brazil	1	0.1%