Rank	Countries/Territories	Count	Percent
1	United States	416	42.2%
2	China	282	28.6%
3	Germany	100	10.1%
4	France	38	3.9%
5	Norway	15	1.5%
6	Serbia	15	1.5%
7	Canada	12	1.2%
8	Cyprus	9	0.9%
9	Singapore	9	0.9%
10	Ireland	7	0.7%
11	Japan	7	0.7%
12	Russia	6	0.6%
13	Ukraine	6	0.6%
14	India	6	0.6%
15	Mongolia	5	0.5%
16	Netherlands	5	0.5%
17	Hong Kong	5	0.5%
18	Thailand	5	0.5%
19	Bangladesh	4	0.4%
20	Brazil	4	0.4%
21	Argentina	3	0.3%
22	Australia	3	0.3%
23	Korea, Republic of	3	0.3%
24	Romania	3	0.3%
25	United Kingdom	2	0.2%
26	Taiwan	2	0.2%
27	Iran, Islamic Republic of	2	0.2%
28	Morocco	2	0.2%
29	Finland	2	0.2%
30	Armenia	2	0.2%
31	Denmark	1	0.1%
32	Latvia	1	0.1%
33	Indonesia	1	0.1%
34	Poland	1	0.1%
35	Tanzania, United Republic of	1	0.1%
36	Sweden	1	0.1%