Rank	Countries/Territories	Count	Percent
1	United States	416	41.9%
2	China	121	12.2%
3	Germany	120	12.1%
4	Canada	34	3.4%
5	India	28	2.8%
6	United Kingdom	27	2.7%
7	Netherlands	26	2.6%
8	Spain	25	2.5%
9	Brazil	24	2.4%
10	Ireland	23	2.3%
11	France	18	1.8%
12	Japan	16	1.6%
13	Australia	13	1.3%
14	Saudi Arabia	12	1.2%
15	Singapore	11	1.1%
16	Italy	11	1.1%
17	Russia	7	0.7%
18	Indonesia	5	0.5%
19	Malaysia	5	0.5%
20	Cyprus	5	0.5%
21	Belgium	4	0.4%
22	Iran, Islamic Republic of	4	0.4%
23	Switzerland	4	0.4%
24	Norway	3	0.3%
25	Romania	3	0.3%
26	Egypt	3	0.3%
27	Ethiopia	3	0.3%
28	Greece	2	0.2%
29	Hong Kong	2	0.2%
30	Algeria	2	0.2%
31	Qatar	2	0.2%
32	South Africa	2	0.2%
33	Ukraine	2	0.2%
34	United Arab Emirates	2	0.2%
35	Sweden	1	0.1%
36	Pakistan	1	0.1%
37	Maldives	1	0.1%
38	Mauritius	1	0.1%
39	Mexico	1	0.1%
40	Mongolia	1	0.1%
41	Argentina	1	0.1%
42	El Salvador	1	0.1%
43	Gibraltar	1	0.1%