Rank	Countries/Territories	Count	Percent
1	United States	441	40.1%
2	China	402	36.5%
3	Germany	80	7.3%
4	Iran, Islamic Republic of	23	2.1%
5	Japan	21	1.9%
6	India	17	1.5%
7	Australia	15	1.4%
8	Netherlands	10	0.9%
9	Senegal	9	0.8%
10	Norway	6	0.5%
11	France	6	0.5%
12	Cyprus	5	0.5%
13	Indonesia	5	0.5%
14	Thailand	5	0.5%
15	Nigeria	5	0.5%
16	Latvia	5	0.5%
17	Portugal	4	0.4%
18	Hong Kong	4	0.4%
19	Italy	4	0.4%
20	Brazil	3	0.3%
21	Canada	3	0.3%
22	Ghana	3	0.3%
23	Bulgaria	2	0.2%
24	Denmark	2	0.2%
25	Jordan	2	0.2%
26	Iraq	2	0.2%
27	Mongolia	2	0.2%
28	Turkey	2	0.2%
29	Pakistan	2	0.2%
30	Singapore	2	0.2%
31	Spain	2	0.2%
32	Taiwan	2	0.2%
33	Switzerland	1	0.1%
34	Philippines	1	0.1%
35	Romania	1	0.1%
36	Russia	1	0.1%
37	Rwanda	1	0.1%