Rank	Countries/Territories	Count	Percent
1	United States	465	36%
2	China	337	26.1%
3	Germany	127	9.8%
4	United Kingdom	90	7%
5	Singapore	37	2.9%
6	Australia	20	1.6%
7	Netherlands	19	1.5%
8	Greece	17	1.3%
9	Japan	15	1.2%
10	Canada	15	1.2%
11	France	14	1.1%
12	India	14	1.1%
13	Russia	10	0.8%
14	Ukraine	9	0.7%
15	Hungary	8	0.6%
16	Iran, Islamic Republic of	7	0.5%
17	Korea, Republic of	6	0.5%
18	Sweden	6	0.5%
19	Poland	5	0.4%
20	Romania	5	0.4%
21	Senegal	5	0.4%
22	Egypt	5	0.4%
23	Brazil	5	0.4%
24	Colombia	4	0.3%
25	Belgium	4	0.3%
26	Botswana	3	0.2%
27	Cyprus	3	0.2%
28	Argentina	3	0.2%
29	Malaysia	3	0.2%
30	Hong Kong	3	0.2%
31	Taiwan	3	0.2%
32	Tanzania, United Republic of	2	0.2%
33	Thailand	2	0.2%
34	Portugal	2	0.2%
35	Philippines	2	0.2%
36	Slovenia	2	0.2%
37	Spain	2	0.2%
38	Sri Lanka	2	0.2%
39	Bangladesh	2	0.2%
40	Finland	1	0.1%
41	Israel	1	0.1%
42	Italy	1	0.1%
43	South Africa	1	0.1%
44	Puerto Rico	1	0.1%
45	Tunisia	1	0.1%
46	Turkey	1	0.1%