Rank	Countries/Territories	Count	Percent
1	United States	552	53.1%
2	China	239	23%
3	Germany	80	7.7%
4	Japan	20	1.9%
5	Canada	17	1.6%
6	Ireland	14	1.3%
7	Netherlands	13	1.2%
8	France	13	1.2%
9	Australia	13	1.2%
10	Cyprus	8	0.8%
11	Hong Kong	6	0.6%
12	Russia	6	0.6%
13	United Kingdom	6	0.6%
14	India	5	0.5%
15	Romania	4	0.4%
16	Sweden	3	0.3%
17	Ukraine	3	0.3%
18	Argentina	3	0.3%
19	Italy	3	0.3%
20	Peru	2	0.2%
21	Saudi Arabia	2	0.2%
22	Singapore	2	0.2%
23	Bulgaria	2	0.2%
24	Bangladesh	2	0.2%
25	Egypt	2	0.2%
26	Fiji	2	0.2%
27	Taiwan	2	0.2%
28	Qatar	2	0.2%
29	Switzerland	1	0.1%
30	Iran, Islamic Republic of	1	0.1%
31	Belarus	1	0.1%
32	Belgium	1	0.1%
33	Denmark	1	0.1%
34	South Africa	1	0.1%
35	Philippines	1	0.1%
36	Portugal	1	0.1%
37	Norway	1	0.1%
38	Pakistan	1	0.1%
39	Palestine, State of	1	0.1%
40	Korea, Republic of	1	0.1%
41	Latvia	1	0.1%
42	Mongolia	1	0.1%