Rank	Countries/Territories	Count	Percent
1	United States	598	41.3%
2	China	445	30.7%
3	Germany	118	8.1%
4	Japan	56	3.9%
5	France	49	3.4%
6	United Kingdom	27	1.9%
7	Canada	24	1.7%
8	Russia	14	1%
9	Singapore	14	1%
10	Netherlands	9	0.6%
11	Ireland	9	0.6%
12	Taiwan	9	0.6%
13	Greece	7	0.5%
14	Czech Republic	6	0.4%
15	India	6	0.4%
16	Australia	6	0.4%
17	Argentina	5	0.3%
18	Cyprus	4	0.3%
19	Latvia	4	0.3%
20	Spain	4	0.3%
21	Romania	4	0.3%
22	Italy	3	0.2%
23	Guatemala	3	0.2%
24	Hong Kong	3	0.2%
25	Iran, Islamic Republic of	2	0.1%
26	Croatia	2	0.1%
27	Belgium	2	0.1%
28	Israel	2	0.1%
29	Switzerland	2	0.1%
30	Pakistan	2	0.1%
31	Poland	2	0.1%
32	South Africa	2	0.1%
33	Sweden	1	0.1%
34	Malaysia	1	0.1%
35	Mongolia	1	0.1%
36	Bangladesh	1	0.1%
37	Finland	1	0.1%
38	Ukraine	1	0.1%