Rank	Countries/Territories	Count	Percent
1	United States	645	41.3%
2	China	330	21.1%
3	Germany	135	8.6%
4	Brazil	85	5.4%
5	India	54	3.5%
6	Russia	50	3.2%
7	Canada	26	1.7%
8	France	21	1.3%
9	Netherlands	18	1.2%
10	Sweden	15	1%
11	Japan	13	0.8%
12	Latvia	12	0.8%
13	Serbia	12	0.8%
14	Korea, Republic of	11	0.7%
15	Australia	11	0.7%
16	Morocco	9	0.6%
17	Spain	9	0.6%
18	United Kingdom	9	0.6%
19	Taiwan	8	0.5%
20	Ireland	7	0.4%
21	Belgium	6	0.4%
22	Hong Kong	6	0.4%
23	South Africa	6	0.4%
24	Singapore	5	0.3%
25	Slovakia	4	0.3%
26	Romania	4	0.3%
27	Tanzania, United Republic of	4	0.3%
28	Turkey	4	0.3%
29	Ukraine	4	0.3%
30	Cote D'ivoire	4	0.3%
31	Cyprus	3	0.2%
32	Lebanon	3	0.2%
33	Portugal	3	0.2%
34	Mexico	3	0.2%
35	Iceland	2	0.1%
36	Norway	2	0.1%
37	Lithuania	2	0.1%
38	Denmark	2	0.1%
39	Iran, Islamic Republic of	2	0.1%
40	Argentina	2	0.1%
41	Greece	2	0.1%
42	Hungary	1	0.1%
43	Chile	1	0.1%
44	Malaysia	1	0.1%
45	Israel	1	0.1%
46	Italy	1	0.1%
47	Pakistan	1	0.1%
48	New Zealand	1	0.1%
49	Switzerland	1	0.1%