Rank	Countries/Territories	Count	Percent
1	United States	260	51.5%
2	China	73	14.5%
3	Australia	17	3.4%
4	Ireland	16	3.2%
5	India	14	2.8%
6	Russia	12	2.4%
7	Germany	11	2.2%
8	Japan	9	1.8%
9	Korea, Republic of	8	1.6%
10	France	8	1.6%
11	Hong Kong	8	1.6%
12	Greece	6	1.2%
13	Pakistan	5	1%
14	United Kingdom	5	1%
15	Viet Nam	4	0.8%
16	Netherlands	4	0.8%
17	Indonesia	4	0.8%
18	Egypt	4	0.8%
19	Mexico	3	0.6%
20	Ukraine	3	0.6%
21	Singapore	3	0.6%
22	Slovakia	2	0.4%
23	Switzerland	2	0.4%
24	Venezuela, Bolivarian Republic of	2	0.4%
25	Nigeria	2	0.4%
26	Portugal	2	0.4%
27	Belgium	2	0.4%
28	Canada	2	0.4%
29	Iran, Islamic Republic of	2	0.4%
30	Lithuania	1	0.2%
31	Malaysia	1	0.2%
32	Argentina	1	0.2%
33	Brazil	1	0.2%
34	Czech Republic	1	0.2%
35	Saudi Arabia	1	0.2%
36	Serbia	1	0.2%
37	Mongolia	1	0.2%
38	Morocco	1	0.2%
39	Taiwan	1	0.2%
40	Thailand	1	0.2%
41	Turkey	1	0.2%