Rank	Countries/Territories	Count	Percent
1	United States	690	36.2%
2	China	463	24.3%
3	Germany	113	5.9%
4	India	102	5.4%
5	Russia	39	2%
6	Norway	34	1.8%
7	Japan	27	1.4%
8	Canada	25	1.3%
9	Serbia	25	1.3%
10	Australia	23	1.2%
11	Korea, Republic of	23	1.2%
12	Singapore	22	1.2%
13	Spain	20	1%
14	United Kingdom	20	1%
15	Turkey	20	1%
16	Iran, Islamic Republic of	20	1%
17	Indonesia	17	0.9%
18	Ireland	16	0.8%
19	Brazil	13	0.7%
20	Taiwan	13	0.7%
21	Netherlands	13	0.7%
22	Greece	12	0.6%
23	Latvia	12	0.6%
24	Switzerland	10	0.5%
25	France	9	0.5%
26	Egypt	9	0.5%
27	Cote D'ivoire	8	0.4%
28	Morocco	8	0.4%
29	Hong Kong	7	0.4%
30	Sweden	7	0.4%
31	Portugal	7	0.4%
32	Viet Nam	7	0.4%
33	Thailand	5	0.3%
34	Romania	5	0.3%
35	Syrian Arab Republic	5	0.3%
36	Israel	5	0.3%
37	Malaysia	4	0.2%
38	Cyprus	4	0.2%
39	Pakistan	4	0.2%
40	Philippines	4	0.2%
41	Palestine, State of	3	0.2%
42	Argentina	3	0.2%
43	Costa Rica	3	0.2%
44	Mongolia	3	0.2%
45	Mauritius	2	0.1%
46	Austria	2	0.1%
47	Belgium	2	0.1%
48	Denmark	2	0.1%
49	Estonia	2	0.1%
50	Oman	2	0.1%
51	Saudi Arabia	2	0.1%
52	Nigeria	1	0.1%
53	Peru	1	0.1%
54	Ukraine	1	0.1%
55	Ecuador	1	0.1%
56	Croatia	1	0.1%
57	Colombia	1	0.1%
58	Mexico	1	0.1%
59	Nepal	1	0.1%
60	Italy	1	0.1%
61	Macao	1	0.1%