Rank	Countries/Territories	Count	Percent
1	United States	572	38.3%
2	China	567	37.9%
3	Germany	134	9%
4	France	58	3.9%
5	South Africa	34	2.3%
6	Netherlands	18	1.2%
7	Singapore	16	1.1%
8	Japan	12	0.8%
9	Ireland	8	0.5%
10	India	8	0.5%
11	Cyprus	8	0.5%
12	Canada	7	0.5%
13	Australia	5	0.3%
14	Bangladesh	4	0.3%
15	Hong Kong	4	0.3%
16	Iraq	4	0.3%
17	Ukraine	4	0.3%
18	United Kingdom	4	0.3%
19	Spain	3	0.2%
20	Korea, Republic of	3	0.2%
21	Latvia	3	0.2%
22	Malaysia	3	0.2%
23	Mongolia	3	0.2%
24	Belgium	2	0.1%
25	Russia	2	0.1%
26	Saudi Arabia	2	0.1%
27	Taiwan	2	0.1%
28	Uruguay	2	0.1%
29	Turkey	1	0.1%
30	Sweden	1	0.1%
31	Argentina	1	0.1%