Rank	Countries/Territories	Count	Percent
1	United States	495	39.9%
2	China	262	21.1%
3	Germany	91	7.3%
4	India	35	2.8%
5	Ireland	34	2.7%
6	Netherlands	29	2.3%
7	Russia	28	2.3%
8	Italy	25	2%
9	Canada	25	2%
10	Singapore	20	1.6%
11	Japan	16	1.3%
12	France	15	1.2%
13	Spain	15	1.2%
14	Uzbekistan	10	0.8%
15	Turkey	10	0.8%
16	Australia	10	0.8%
17	Korea, Republic of	10	0.8%
18	Hong Kong	9	0.7%
19	Cyprus	8	0.6%
20	Czech Republic	8	0.6%
21	United Kingdom	8	0.6%
22	Argentina	6	0.5%
23	Brazil	5	0.4%
24	Malaysia	5	0.4%
25	Mexico	4	0.3%
26	Hungary	4	0.3%
27	Colombia	4	0.3%
28	Algeria	4	0.3%
29	Viet Nam	4	0.3%
30	Switzerland	4	0.3%
31	Austria	3	0.2%
32	Iran, Islamic Republic of	3	0.2%
33	Mauritius	2	0.2%
34	Mongolia	2	0.2%
35	Morocco	2	0.2%
36	Philippines	2	0.2%
37	Romania	2	0.2%
38	Azerbaijan	2	0.2%
39	Chile	2	0.2%
40	South Africa	2	0.2%
41	Thailand	2	0.2%
42	Sweden	2	0.2%
43	Slovakia	1	0.1%
44	Taiwan	1	0.1%
45	Ukraine	1	0.1%
46	Bangladesh	1	0.1%
47	Belgium	1	0.1%
48	Belize	1	0.1%
49	Croatia	1	0.1%
50	Saudi Arabia	1	0.1%
51	Norway	1	0.1%
52	Pakistan	1	0.1%
53	Lithuania	1	0.1%
54	Macao	1	0.1%