Rank	Countries/Territories	Count	Percent
1	United States	360	40.3%
2	China	280	31.4%
3	Germany	93	10.4%
4	Canada	23	2.6%
5	Ghana	22	2.5%
6	France	18	2%
7	Australia	12	1.3%
8		10	1.1%
9	Ireland	9	1%
10	Korea, Republic of	7	0.8%
11	Netherlands	7	0.8%
12	Singapore	7	0.8%
13	Uganda	6	0.7%
14	Japan	4	0.4%
15	Russia	4	0.4%
16	Cyprus	4	0.4%
17	Denmark	4	0.4%
18	Israel	3	0.3%
19	Mongolia	3	0.3%
20	United Kingdom	2	0.2%
21	Taiwan	2	0.2%
22	Tanzania, United Republic of	2	0.2%
23	Italy	2	0.2%
24	India	2	0.2%
25	Malta	1	0.1%
26	Estonia	1	0.1%
27	Argentina	1	0.1%
28	Bangladesh	1	0.1%
29	Bosnia and Herzegovina	1	0.1%
30	Nigeria	1	0.1%
31	Romania	1	0.1%