Rank	Countries/Territories	Count	Percent
1	United States	532	33.8%
2	China	277	17.6%
3	Germany	108	6.9%
4	India	82	5.2%
5	Netherlands	49	3.1%
6	United Kingdom	43	2.7%
7	Kazakhstan	33	2.1%
8	Denmark	31	2%
9	Turkey	30	1.9%
10	France	26	1.7%
11	Australia	24	1.5%
12	Canada	23	1.5%
13	Ireland	21	1.3%
14	Taiwan	21	1.3%
15	Indonesia	19	1.2%
16	Russia	18	1.1%
17	Korea, Republic of	17	1.1%
18	Japan	15	1%
19	Singapore	15	1%
20	Romania	15	1%
21	Iran, Islamic Republic of	14	0.9%
22	Spain	12	0.8%
23	Mexico	11	0.7%
24	Brazil	10	0.6%
25	Belgium	8	0.5%
26	Ukraine	8	0.5%
27	Poland	6	0.4%
28	Algeria	6	0.4%
29	Colombia	6	0.4%
30	Greece	6	0.4%
31	Hungary	5	0.3%
32	Malaysia	5	0.3%
33	New Zealand	5	0.3%
34	Morocco	4	0.3%
35	Saudi Arabia	4	0.3%
36	Viet Nam	4	0.3%
37	Lithuania	4	0.3%
38	Hong Kong	4	0.3%
39	Ghana	4	0.3%
40	Egypt	4	0.3%
41	Cyprus	3	0.2%
42	Czech Republic	3	0.2%
43	Jordan	3	0.2%
44	Italy	3	0.2%
45	Tanzania, United Republic of	3	0.2%
46	Sierra Leone	3	0.2%
47	Mongolia	3	0.2%
48	Mauritania	2	0.1%
49	Ecuador	2	0.1%
50	Argentina	2	0.1%
51	Cameroon	2	0.1%
52	Angola	1	0.1%
53	Azerbaijan	1	0.1%
54	Bangladesh	1	0.1%
55	Ethiopia	1	0.1%
56	Jamaica	1	0.1%
57	Latvia	1	0.1%
58	Norway	1	0.1%
59	Oman	1	0.1%
60	Pakistan	1	0.1%
61	Palestine, State of	1	0.1%
62	Sweden	1	0.1%
63	Syrian Arab Republic	1	0.1%
64	Thailand	1	0.1%
65	United Arab Emirates	1	0.1%