Rank	Countries/Territories	Count	Percent
1	United States	548	43.3%
2	China	457	36.1%
3	Germany	117	9.2%
4	Turkey	23	1.8%
5	Japan	15	1.2%
6	Russia	14	1.1%
7	Latvia	7	0.6%
8	Netherlands	7	0.6%
9	Italy	6	0.5%
10	United Kingdom	6	0.5%
11	Hong Kong	6	0.5%
12	India	5	0.4%
13	France	5	0.4%
14	Brazil	5	0.4%
15	Cyprus	4	0.3%
16	Canada	4	0.3%
17	Norway	4	0.3%
18	Ukraine	3	0.2%
19	Nigeria	3	0.2%
20	Singapore	3	0.2%
21	Korea, Republic of	3	0.2%
22	Bulgaria	3	0.2%
23	Bangladesh	3	0.2%
24	Argentina	2	0.2%
25	Denmark	2	0.2%
26	Iran, Islamic Republic of	2	0.2%
27	Spain	2	0.2%
28	Switzerland	2	0.2%
29	Uganda	1	0.1%
30	Sweden	1	0.1%
31	Mauritius	1	0.1%
32	Australia	1	0.1%
33	Benin	1	0.1%