Rank	Countries/Territories	Count	Percent
1	United States	476	38.1%
2	China	385	30.8%
3	Germany	101	8.1%
4	South Africa	56	4.5%
5	Singapore	49	3.9%
6	Japan	31	2.5%
7	Netherlands	22	1.8%
8	France	20	1.6%
9	Canada	15	1.2%
10		14	1.1%
11	Russia	8	0.6%
12	United Kingdom	7	0.6%
13	Cyprus	6	0.5%
14	Hong Kong	6	0.5%
15	Mexico	5	0.4%
16	Mongolia	4	0.3%
17	Thailand	4	0.3%
18	Spain	4	0.3%
19	Australia	4	0.3%
20	Turkey	3	0.2%
21	Taiwan	3	0.2%
22	Switzerland	2	0.2%
23	Romania	2	0.2%
24	Jordan	2	0.2%
25	Serbia	2	0.2%
26	Finland	2	0.2%
27	Bulgaria	2	0.2%
28	Italy	2	0.2%
29	India	2	0.2%
30	Iran, Islamic Republic of	2	0.2%
31	Ireland	1	0.1%
32	Hungary	1	0.1%
33	Greece	1	0.1%
34	Brazil	1	0.1%
35	Argentina	1	0.1%
36	Nigeria	1	0.1%
37	Poland	1	0.1%
38	Latvia	1	0.1%
39	Ukraine	1	0.1%