Rank	Countries/Territories	Count	Percent
1	United States	537	30.5%
2	China	430	24.4%
3	Germany	248	14.1%
4	Bulgaria	129	7.3%
5	Japan	45	2.6%
6		41	2.3%
7	Australia	36	2%
8	Brazil	36	2%
9	Netherlands	24	1.4%
10	Lebanon	23	1.3%
11	India	22	1.2%
12	Taiwan	19	1.1%
13	United Kingdom	18	1%
14	Cyprus	18	1%
15	France	17	1%
16	Canada	17	1%
17	Russia	17	1%
18	Hong Kong	16	0.9%
19	Ukraine	10	0.6%
20	Pakistan	9	0.5%
21	Korea, Republic of	8	0.5%
22	Latvia	5	0.3%
23	Israel	5	0.3%
24	Spain	4	0.2%
25	Singapore	3	0.2%
26	Norway	3	0.2%
27	Mauritius	3	0.2%
28	Portugal	3	0.2%
29	Malaysia	2	0.1%
30	Peru	2	0.1%
31	South Africa	2	0.1%
32	Switzerland	1	0.1%
33	Mongolia	1	0.1%
34	Jordan	1	0.1%
35	Iran, Islamic Republic of	1	0.1%
36	Ireland	1	0.1%
37	Georgia	1	0.1%
38	Belgium	1	0.1%
39	Argentina	1	0.1%
40	Turkey	1	0.1%