Rank	Countries/Territories	Count	Percent
1	United States	634	49.8%
2	China	294	23.1%
3	Germany	96	7.5%
4	India	44	3.5%
5	Japan	24	1.9%
6	Turkey	18	1.4%
7	Canada	15	1.2%
8	Korea, Republic of	14	1.1%
9	Netherlands	14	1.1%
10	Italy	12	0.9%
11	Australia	12	0.9%
12	United Kingdom	10	0.8%
13	Bulgaria	7	0.5%
14	Singapore	7	0.5%
15	Cyprus	6	0.5%
16	France	6	0.5%
17	Greece	5	0.4%
18	Spain	5	0.4%
19	Thailand	4	0.3%
20	Chile	4	0.3%
21	Benin	4	0.3%
22	Romania	4	0.3%
23	Indonesia	4	0.3%
24	Iran, Islamic Republic of	3	0.2%
25	Latvia	3	0.2%
26	Hong Kong	3	0.2%
27	Ghana	2	0.2%
28	Colombia	2	0.2%
29	Brazil	2	0.2%
30	Bangladesh	2	0.2%
31	Lithuania	2	0.2%
32	New Zealand	2	0.2%
33	Nigeria	2	0.2%
34	Tunisia	2	0.2%
35	Ukraine	2	0.2%
36	Paraguay	1	0.1%
37	South Africa	1	0.1%
38	Ireland	1	0.1%
39	Argentina	1	0.1%