Rank	Countries/Territories	Count	Percent
1	United States	592	52%
2	China	228	20%
3	Germany	94	8.3%
4	India	42	3.7%
5	Japan	21	1.8%
6	Turkey	18	1.6%
7	Korea, Republic of	14	1.2%
8	Canada	14	1.2%
9	Australia	12	1.1%
10	Netherlands	12	1.1%
11	Italy	12	1.1%
12	United Kingdom	10	0.9%
13	Bulgaria	7	0.6%
14	Cyprus	5	0.4%
15	Singapore	5	0.4%
16	Spain	5	0.4%
17	Thailand	4	0.4%
18	Romania	4	0.4%
19	Benin	4	0.4%
20	Chile	4	0.4%
21	France	3	0.3%
22	Greece	3	0.3%
23	Hong Kong	3	0.3%
24	Iran, Islamic Republic of	3	0.3%
25	New Zealand	2	0.2%
26	Nigeria	2	0.2%
27	Tunisia	2	0.2%
28	Ukraine	2	0.2%
29	Indonesia	2	0.2%
30	Ghana	2	0.2%
31	Colombia	2	0.2%
32	Brazil	2	0.2%
33	Argentina	1	0.1%
34	South Africa	1	0.1%
35	Paraguay	1	0.1%
36	Ireland	1	0.1%