Rank	Countries/Territories	Count	Percent
1	United States	549	33.2%
2	China	451	27.2%
3	Germany	178	10.7%
4	Japan	91	5.5%
5	France	80	4.8%
6	Canada	38	2.3%
7	Iran, Islamic Republic of	32	1.9%
8	Singapore	22	1.3%
9	Netherlands	21	1.3%
10	United Kingdom	20	1.2%
11	Russia	19	1.1%
12	India	19	1.1%
13	Australia	15	0.9%
14	Ireland	13	0.8%
15	Cyprus	9	0.5%
16	Italy	8	0.5%
17	Switzerland	8	0.5%
18	Taiwan	7	0.4%
19	Thailand	7	0.4%
20	Viet Nam	7	0.4%
21	Finland	7	0.4%
22	Ukraine	5	0.3%
23	South Africa	4	0.2%
24	Colombia	4	0.2%
25	Mauritius	4	0.2%
26	Malaysia	3	0.2%
27	Belgium	3	0.2%
28	Brazil	3	0.2%
29	Egypt	3	0.2%
30	Hong Kong	3	0.2%
31	Indonesia	2	0.1%
32	Argentina	2	0.1%
33	Romania	2	0.1%
34	Mongolia	2	0.1%
35	Iraq	2	0.1%
36	Korea, Republic of	2	0.1%
37	Spain	2	0.1%
38	Yemen	2	0.1%
39	Latvia	1	0.1%
40	Lithuania	1	0.1%
41	New Zealand	1	0.1%
42	Pakistan	1	0.1%
43	Poland	1	0.1%
44	Bulgaria	1	0.1%
45	Bangladesh	1	0.1%