Rank	Countries/Territories	Count	Percent
1	United States	183	40%
2	China	125	27.4%
3	Germany	46	10.1%
4	France	24	5.3%
5	Serbia	15	3.3%
6	Norway	14	3.1%
7	Japan	6	1.3%
8	Cyprus	5	1.1%
9	Brazil	4	0.9%
10	Ireland	4	0.9%
11	Singapore	4	0.9%
12	India	3	0.7%
13	Armenia	2	0.4%
14	Canada	2	0.4%
15	Finland	2	0.4%
16	Iran, Islamic Republic of	2	0.4%
17	Romania	2	0.4%
18	Korea, Republic of	2	0.4%
19	Mongolia	2	0.4%
20	Morocco	2	0.4%
21	Netherlands	2	0.4%
22	Taiwan	2	0.4%
23	United Kingdom	1	0.2%
24	Sweden	1	0.2%
25	Russia	1	0.2%
26	Indonesia	1	0.2%