Rank	Countries/Territories	Count	Percent
1	United States	586	34.2%
2	China	297	17.3%
3	Germany	121	7.1%
4	India	92	5.4%
5	Netherlands	52	3%
6	United Kingdom	45	2.6%
7	Kazakhstan	33	1.9%
8	Denmark	31	1.8%
9	Turkey	30	1.7%
10	Indonesia	28	1.6%
11	France	28	1.6%
12	Australia	25	1.5%
13	Canada	23	1.3%
14	Ireland	21	1.2%
15	Taiwan	21	1.2%
16	Iran, Islamic Republic of	19	1.1%
17	Korea, Republic of	18	1%
18	Japan	18	1%
19	Russia	18	1%
20	Romania	15	0.9%
21	Singapore	15	0.9%
22	Spain	12	0.7%
23	Mexico	12	0.7%
24	Brazil	10	0.6%
25	Belgium	8	0.5%
26	Tanzania, United Republic of	8	0.5%
27	Ukraine	8	0.5%
28	Poland	6	0.3%
29	Egypt	6	0.3%
30	Greece	6	0.3%
31	Algeria	6	0.3%
32	Colombia	6	0.3%
33	Hong Kong	5	0.3%
34	Hungary	5	0.3%
35	Malaysia	5	0.3%
36	New Zealand	5	0.3%
37	Mongolia	4	0.2%
38	Morocco	4	0.2%
39	Lithuania	4	0.2%
40	United Arab Emirates	4	0.2%
41	Viet Nam	4	0.2%
42	Saudi Arabia	4	0.2%
43	Ghana	4	0.2%
44	Cyprus	4	0.2%
45	Argentina	4	0.2%
46	Czech Republic	3	0.2%
47	Jordan	3	0.2%
48	Italy	3	0.2%
49	Sierra Leone	3	0.2%
50	Portugal	2	0.1%
51	Mauritania	2	0.1%
52	Ecuador	2	0.1%
53	Bangladesh	2	0.1%
54	Cameroon	2	0.1%
55	Angola	1	0.1%
56	Azerbaijan	1	0.1%
57	Chile	1	0.1%
58	Jamaica	1	0.1%
59	Latvia	1	0.1%
60	Ethiopia	1	0.1%
61	Norway	1	0.1%
62	Oman	1	0.1%
63	Pakistan	1	0.1%
64	Palestine, State of	1	0.1%
65	Sweden	1	0.1%
66	Syrian Arab Republic	1	0.1%
67	Thailand	1	0.1%