Rank	Countries/Territories	Count	Percent
1	United States	390	31.5%
2	China	313	25.3%
3	Germany	71	5.7%
4	India	68	5.5%
5	Russia	38	3.1%
6	Norway	34	2.7%
7	Serbia	25	2%
8	Canada	23	1.9%
9	Australia	21	1.7%
10	Korea, Republic of	20	1.6%
11	Spain	16	1.3%
12	Turkey	14	1.1%
13	Indonesia	14	1.1%
14	Ireland	14	1.1%
15	Brazil	13	1.1%
16	Latvia	12	1%
17	Japan	12	1%
18	Taiwan	12	1%
19	Singapore	9	0.7%
20	Netherlands	8	0.6%
21	Morocco	8	0.6%
22	Cote D'ivoire	8	0.6%
23	Iran, Islamic Republic of	8	0.6%
24	Greece	8	0.6%
25	United Kingdom	6	0.5%
26	Syrian Arab Republic	5	0.4%
27	Sweden	5	0.4%
28	Egypt	5	0.4%
29	Portugal	5	0.4%
30	Romania	4	0.3%
31	Pakistan	4	0.3%
32	France	4	0.3%
33	Malaysia	4	0.3%
34	Hong Kong	4	0.3%
35	Israel	3	0.2%
36	Cyprus	3	0.2%
37	Palestine, State of	3	0.2%
38	Philippines	2	0.2%
39	Oman	2	0.2%
40	Saudi Arabia	2	0.2%
41	Mauritius	2	0.2%
42	Denmark	2	0.2%
43	Austria	2	0.2%
44	Estonia	2	0.2%
45	Thailand	2	0.2%
46	Switzerland	1	0.1%
47	Ukraine	1	0.1%
48	Italy	1	0.1%
49	Colombia	1	0.1%
50	Mexico	1	0.1%
51	Mongolia	1	0.1%
52	Nepal	1	0.1%