Rank	Countries/Territories	Count	Percent
1	United States	261	40.5%
2	China	230	35.7%
3	Germany	61	9.5%
4	Canada	16	2.5%
5	Japan	16	2.5%
6	France	15	2.3%
7	Korea, Republic of	6	0.9%
8	Netherlands	6	0.9%
9	India	5	0.8%
10	Cyprus	4	0.6%
11	Spain	3	0.5%
12	Lithuania	3	0.5%
13	Malaysia	3	0.5%
14	Russia	2	0.3%
15	Singapore	2	0.3%
16	Australia	2	0.3%
17	Italy	2	0.3%
18	Tanzania, United Republic of	2	0.3%
19	United Kingdom	2	0.3%
20	Brazil	1	0.2%
21	Taiwan	1	0.2%
22	Mongolia	1	0.2%
23	Myanmar	1	0.2%