Rank	Countries/Territories	Count	Percent
1	United States	315	29.7%
2	China	312	29.4%
3	Germany	110	10.4%
4	South Africa	43	4%
5	France	40	3.8%
6	India	32	3%
7	Netherlands	25	2.4%
8	Bulgaria	20	1.9%
9	Spain	17	1.6%
10	Canada	13	1.2%
11	Korea, Republic of	11	1%
12	Iran, Islamic Republic of	9	0.8%
13	Ireland	8	0.8%
14	Brazil	8	0.8%
15	Taiwan	8	0.8%
16	Thailand	8	0.8%
17	Poland	7	0.7%
18	Japan	6	0.6%
19	Hong Kong	6	0.6%
20	Bolivia, Plurinational State of	5	0.5%
21	Turkey	5	0.5%
22	Singapore	5	0.5%
23	Jordan	4	0.4%
24	Mauritius	4	0.4%
25	Philippines	4	0.4%
26	Cyprus	3	0.3%
27	Indonesia	3	0.3%
28	Italy	2	0.2%
29	Australia	2	0.2%
30	Malaysia	2	0.2%
31	Nigeria	2	0.2%
32	Viet Nam	2	0.2%
33	United Kingdom	2	0.2%
34	Tunisia	2	0.2%
35	Sweden	2	0.2%
36	Switzerland	1	0.1%
37	Norway	1	0.1%
38	Pakistan	1	0.1%
39	Peru	1	0.1%
40	Kenya	1	0.1%
41	Latvia	1	0.1%
42	Lithuania	1	0.1%
43	Mexico	1	0.1%
44	Morocco	1	0.1%
45	Romania	1	0.1%
46	Russia	1	0.1%
47	Saudi Arabia	1	0.1%
48	Egypt	1	0.1%
49	Israel	1	0.1%
50	Ghana	1	0.1%