Rank	Countries/Territories	Count	Percent
1	United States	448	37.6%
2	China	416	34.9%
3	Germany	87	7.3%
4	Australia	32	2.7%
5	Canada	31	2.6%
6	Japan	18	1.5%
7	Russia	18	1.5%
8	France	15	1.3%
9	India	14	1.2%
10	Netherlands	13	1.1%
11	Norway	12	1%
12	Singapore	10	0.8%
13	Iran, Islamic Republic of	9	0.8%
14	United Kingdom	8	0.7%
15	Argentina	7	0.6%
16	Cyprus	7	0.6%
17	Ireland	5	0.4%
18	Senegal	5	0.4%
19	Ukraine	3	0.3%
20	Slovenia	3	0.3%
21	Saudi Arabia	3	0.3%
22	Hong Kong	3	0.3%
23	Mongolia	2	0.2%
24	Denmark	2	0.2%
25	Finland	2	0.2%
26	Belgium	2	0.2%
27	New Zealand	2	0.2%
28	Nigeria	2	0.2%
29	Sweden	2	0.2%
30	Switzerland	2	0.2%
31	Turkey	2	0.2%
32	Taiwan	1	0.1%
33	Pakistan	1	0.1%
34	Peru	1	0.1%
35	Portugal	1	0.1%
36	Romania	1	0.1%
37	Chile	1	0.1%