Rank	Countries/Territories	Count	Percent
1	United States	323	35.6%
2	China	279	30.8%
3	Germany	72	7.9%
4	Spain	40	4.4%
5	Canada	22	2.4%
6	Japan	21	2.3%
7	Korea, Republic of	20	2.2%
8	India	20	2.2%
9	Netherlands	16	1.8%
10	Sweden	14	1.5%
11	United Kingdom	11	1.2%
12	France	9	1%
13	Ireland	5	0.6%
14	Israel	5	0.6%
15	Italy	4	0.4%
16	Hong Kong	4	0.4%
17	Cyprus	4	0.4%
18	Australia	3	0.3%
19	Iran, Islamic Republic of	3	0.3%
20	Malaysia	3	0.3%
21	Moldova, Republic of	2	0.2%
22	New Zealand	2	0.2%
23	Slovakia	2	0.2%
24	Romania	2	0.2%
25	Russia	2	0.2%
26	Switzerland	2	0.2%
27	Turkey	2	0.2%
28	Brazil	2	0.2%
29	Belgium	1	0.1%
30	Djibouti	1	0.1%
31	Ecuador	1	0.1%
32	Egypt	1	0.1%
33	Libya	1	0.1%
34	Ukraine	1	0.1%
35	Singapore	1	0.1%
36	Oman	1	0.1%
37	Pakistan	1	0.1%
38	Poland	1	0.1%
39	Morocco	1	0.1%
40	Nepal	1	0.1%
41	Mauritius	1	0.1%