Rank	Countries/Territories	Count	Percent
1	United States	140	35.9%
2	China	103	26.4%
3	Germany	75	19.2%
4	Canada	14	3.6%
5	United Kingdom	8	2.1%
6	Singapore	6	1.5%
7	Italy	4	1%
8	Hong Kong	3	0.8%
9	France	3	0.8%
10	Brazil	3	0.8%
11	Netherlands	3	0.8%
12	Taiwan	2	0.5%
13	Argentina	2	0.5%
14	Ghana	2	0.5%
15	Gibraltar	2	0.5%
16	Cyprus	2	0.5%
17	Ireland	2	0.5%
18	Japan	2	0.5%
19	Korea, Republic of	2	0.5%
20	Malaysia	2	0.5%
21	Mongolia	2	0.5%
22	India	1	0.3%
23	Denmark	1	0.3%
24	Australia	1	0.3%
25	Austria	1	0.3%
26	Philippines	1	0.3%
27	Russia	1	0.3%
28	Sweden	1	0.3%
29	Switzerland	1	0.3%