Rank	Countries/Territories	Count	Percent
1	United States	309	36.6%
2	China	169	20%
3	Germany	49	5.8%
4	Australia	34	4%
5	Canada	33	3.9%
6	India	33	3.9%
7	Japan	21	2.5%
8	Denmark	17	2%
9	Korea, Republic of	16	1.9%
10	France	15	1.8%
11	Russia	12	1.4%
12	Spain	10	1.2%
13	Netherlands	10	1.2%
14	Hong Kong	10	1.2%
15	Singapore	7	0.8%
16	Taiwan	7	0.8%
17	Portugal	6	0.7%
18	Cyprus	5	0.6%
19	Turkey	5	0.6%
20	United Kingdom	5	0.6%
21	Poland	4	0.5%
22	Romania	4	0.5%
23	Brazil	4	0.5%
24	Indonesia	4	0.5%
25	Ireland	4	0.5%
26	Italy	4	0.5%
27	Mauritius	3	0.4%
28	Philippines	3	0.4%
29	Colombia	3	0.4%
30	Finland	3	0.4%
31	Venezuela, Bolivarian Republic of	3	0.4%
32	Switzerland	2	0.2%
33	Ukraine	2	0.2%
34	United Arab Emirates	2	0.2%
35	Egypt	2	0.2%
36	Georgia	2	0.2%
37	Czech Republic	2	0.2%
38	Austria	2	0.2%
39	Belarus	2	0.2%
40	Nicaragua	2	0.2%
41	Norway	2	0.2%
42	Morocco	2	0.2%
43	Malaysia	2	0.2%
44	Iran, Islamic Republic of	2	0.2%
45	Mongolia	1	0.1%
46	Nepal	1	0.1%
47	Qatar	1	0.1%
48	Ghana	1	0.1%
49	Ecuador	1	0.1%
50	Slovakia	1	0.1%