Rank	Countries/Territories	Count	Percent
1	United States	327	35.3%
2	China	312	33.7%
3	Germany	72	7.8%
4		66	7.1%
5	India	18	1.9%
6	Russia	16	1.7%
7	South Africa	13	1.4%
8	Australia	11	1.2%
9	Japan	10	1.1%
10	Israel	7	0.8%
11	Senegal	6	0.6%
12	Singapore	6	0.6%
13	United Kingdom	6	0.6%
14	Viet Nam	5	0.5%
15	Korea, Republic of	5	0.5%
16	Canada	5	0.5%
17	France	5	0.5%
18	Mongolia	4	0.4%
19	Mauritius	3	0.3%
20	Romania	3	0.3%
21	Ecuador	3	0.3%
22	Egypt	3	0.3%
23	Denmark	2	0.2%
24	Italy	2	0.2%
25	Turkey	2	0.2%
26	Ukraine	1	0.1%
27	Ireland	1	0.1%
28	Hong Kong	1	0.1%
29	Brazil	1	0.1%
30	Argentina	1	0.1%
31	Spain	1	0.1%
32	Switzerland	1	0.1%
33	Taiwan	1	0.1%
34	Morocco	1	0.1%
35	Netherlands	1	0.1%
36	Pakistan	1	0.1%
37	Latvia	1	0.1%
38	Lebanon	1	0.1%
39	Lithuania	1	0.1%