Rank	Countries/Territories	Count	Percent
1	United States	563	38.7%
2	China	404	27.8%
3	Germany	125	8.6%
4	India	63	4.3%
5	Russia	37	2.5%
6	Bulgaria	24	1.7%
7	Netherlands	22	1.5%
8	France	21	1.4%
9	Japan	20	1.4%
10	Italy	18	1.2%
11	United Kingdom	18	1.2%
12	Austria	15	1%
13	Canada	14	1%
14	Korea, Republic of	14	1%
15	Cyprus	9	0.6%
16	Iran, Islamic Republic of	9	0.6%
17	Hong Kong	8	0.6%
18	Spain	8	0.6%
19	Philippines	7	0.5%
20	Poland	7	0.5%
21	Ireland	7	0.5%
22	Australia	7	0.5%
23	Denmark	4	0.3%
24	Indonesia	3	0.2%
25	Sweden	3	0.2%
26	Singapore	3	0.2%
27	Turkey	3	0.2%
28	Lithuania	2	0.1%
29	Saudi Arabia	2	0.1%
30	Czech Republic	2	0.1%
31	Chile	2	0.1%
32	Argentina	1	0.1%
33	Bangladesh	1	0.1%
34	Brazil	1	0.1%
35	Israel	1	0.1%
36	Greece	1	0.1%
37	Latvia	1	0.1%
38	Ukraine	1	0.1%
39	South Africa	1	0.1%
40	Taiwan	1	0.1%