Rank	Countries/Territories	Count	Percent
1	United States	533	44.9%
2	China	221	18.6%
3	Germany	104	8.8%
4	Netherlands	43	3.6%
5	France	27	2.3%
6	United Kingdom	26	2.2%
7	Australia	25	2.1%
8	Canada	22	1.9%
9	Russia	19	1.6%
10	India	18	1.5%
11	Ireland	14	1.2%
12	Switzerland	14	1.2%
13	Japan	9	0.8%
14	Korea, Republic of	9	0.8%
15	Finland	8	0.7%
16	Egypt	6	0.5%
17	Hong Kong	6	0.5%
18	Cyprus	6	0.5%
19		6	0.5%
20	Norway	6	0.5%
21	Senegal	5	0.4%
22	Singapore	5	0.4%
23	Romania	5	0.4%
24	Taiwan	4	0.3%
25	Latvia	4	0.3%
26	Belgium	3	0.3%
27	Czech Republic	3	0.3%
28	Iran, Islamic Republic of	3	0.3%
29	South Africa	3	0.3%
30	Sri Lanka	2	0.2%
31	Sweden	2	0.2%
32	Turkey	2	0.2%
33	Indonesia	2	0.2%
34	Argentina	2	0.2%
35	Botswana	2	0.2%
36	Italy	2	0.2%
37	Malaysia	2	0.2%
38	Philippines	2	0.2%
39	Portugal	1	0.1%
40	Qatar	1	0.1%
41	Reunion	1	0.1%
42	Pakistan	1	0.1%
43	New Zealand	1	0.1%
44	Lithuania	1	0.1%
45	Afghanistan	1	0.1%
46	Iraq	1	0.1%
47	United Arab Emirates	1	0.1%
48	Thailand	1	0.1%
49	Slovenia	1	0.1%
50	Saudi Arabia	1	0.1%