Rank	Countries/Territories	Count	Percent
1	United States	555	33.3%
2	China	166	9.9%
3	Germany	133	8%
4	India	77	4.6%
5	Korea, Republic of	64	3.8%
6	Brazil	63	3.8%
7	United Kingdom	44	2.6%
8	Japan	39	2.3%
9	Russia	39	2.3%
10	Canada	36	2.2%
11	Netherlands	32	1.9%
12	Romania	26	1.6%
13	Australia	22	1.3%
14	France	22	1.3%
15	Turkey	21	1.3%
16	Ireland	18	1.1%
17	Ukraine	15	0.9%
18	Switzerland	14	0.8%
19	Italy	14	0.8%
20	Viet Nam	12	0.7%
21	Hong Kong	11	0.7%
22	Egypt	11	0.7%
23	Norway	11	0.7%
24	Philippines	11	0.7%
25	Lithuania	10	0.6%
26	Greece	10	0.6%
27	Iran, Islamic Republic of	10	0.6%
28	Czech Republic	9	0.5%
29	Thailand	9	0.5%
30	Slovakia	9	0.5%
31	Singapore	8	0.5%
32	United Arab Emirates	8	0.5%
33	Poland	8	0.5%
34	Moldova, Republic of	8	0.5%
35	Cyprus	8	0.5%
36	Taiwan	7	0.4%
37	Spain	6	0.4%
38	Pakistan	6	0.4%
39	Colombia	6	0.4%
40	Cote D'ivoire	5	0.3%
41	Bulgaria	5	0.3%
42	Sweden	5	0.3%
43	Slovenia	5	0.3%
44	Serbia	5	0.3%
45	Syrian Arab Republic	4	0.2%
46	Malaysia	4	0.2%
47	Azerbaijan	4	0.2%
48	Croatia	4	0.2%
49	Belgium	4	0.2%
50	Estonia	3	0.2%
51	Georgia	3	0.2%
52	Israel	3	0.2%
53	Hungary	3	0.2%
54	Jordan	3	0.2%
55	South Africa	3	0.2%
56	Sri Lanka	2	0.1%
57	Kenya	2	0.1%
58	Palestine, State of	2	0.1%
59	Puerto Rico	2	0.1%
60	Saudi Arabia	2	0.1%
61	Portugal	1	0.1%
62	Kuwait	1	0.1%
63	Lebanon	1	0.1%
64	Nigeria	1	0.1%
65	Tanzania, United Republic of	1	0.1%
66	Indonesia	1	0.1%
67	Guatemala	1	0.1%
68	Finland	1	0.1%
69	Denmark	1	0.1%
70	Chile	1	0.1%
71	Bahrain	1	0.1%
72	Bangladesh	1	0.1%
73	Barbados	1	0.1%
74	Belarus	1	0.1%
75	Albania	1	0.1%
76	Argentina	1	0.1%
77	Armenia	1	0.1%
78	Uzbekistan	1	0.1%