Rank	Countries/Territories	Count	Percent
1	United States	399	43.2%
2	China	191	20.7%
3	Germany	94	10.2%
4	Japan	50	5.4%
5	Australia	40	4.3%
6	Canada	20	2.2%
7	India	11	1.2%
8	France	10	1.1%
9	Portugal	9	1%
10	Singapore	8	0.9%
11	Hong Kong	8	0.9%
12	Mongolia	7	0.8%
13	Netherlands	7	0.8%
14	Ireland	6	0.7%
15	Korea, Republic of	6	0.7%
16	Bulgaria	5	0.5%
17	Cyprus	5	0.5%
18	Nigeria	5	0.5%
19	Mexico	5	0.5%
20	Turkey	5	0.5%
21	United Kingdom	4	0.4%
22	Russia	3	0.3%
23	Poland	3	0.3%
24	Sweden	2	0.2%
25	South Africa	2	0.2%
26	Romania	2	0.2%
27	Ghana	2	0.2%
28	Argentina	2	0.2%
29	Latvia	2	0.2%
30	Iran, Islamic Republic of	2	0.2%
31	Malaysia	1	0.1%
32	Spain	1	0.1%
33	Taiwan	1	0.1%
34	Thailand	1	0.1%
35	Ukraine	1	0.1%
36	Norway	1	0.1%
37	Italy	1	0.1%
38	Morocco	1	0.1%