Rank	Countries/Territories	Count	Percent
1	United States	913	37.2%
2	China	833	34%
3	Germany	197	8%
4	Denmark	47	1.9%
5	Canada	45	1.8%
6	France	38	1.5%
7	Japan	38	1.5%
8	Netherlands	33	1.3%
9	Italy	27	1.1%
10	Singapore	26	1.1%
11		21	0.9%
12	India	19	0.8%
13	Turkey	18	0.7%
14	Romania	16	0.7%
15	Cyprus	14	0.6%
16	Iran, Islamic Republic of	13	0.5%
17	Taiwan	13	0.5%
18	Poland	12	0.5%
19	Sweden	11	0.4%
20	United Kingdom	11	0.4%
21	Spain	10	0.4%
22	Russia	9	0.4%
23	Korea, Republic of	8	0.3%
24	Colombia	8	0.3%
25	Australia	7	0.3%
26	Brazil	6	0.2%
27	Czech Republic	5	0.2%
28	Portugal	5	0.2%
29	Mongolia	4	0.2%
30	Switzerland	4	0.2%
31	Hong Kong	4	0.2%
32	Macao	4	0.2%
33	Malaysia	4	0.2%
34	Ireland	4	0.2%
35	Ghana	3	0.1%
36	Argentina	3	0.1%
37	Bangladesh	2	0.1%
38	Belgium	2	0.1%
39	Egypt	2	0.1%
40	Latvia	2	0.1%
41	Peru	2	0.1%
42	South Africa	2	0.1%
43	Ukraine	1	0%
44	Mexico	1	0%
45	Pakistan	1	0%
46	Indonesia	1	0%
47	Finland	1	0%
48	Dominican Republic	1	0%
49	Bulgaria	1	0%
50	Austria	1	0%