Rank	Countries/Territories	Count	Percent
1	United States	156	34.9%
2	China	132	29.5%
3	Germany	39	8.7%
4	Japan	13	2.9%
5	France	11	2.5%
6	Botswana	11	2.5%
7	Malaysia	9	2%
8	Singapore	7	1.6%
9	Netherlands	7	1.6%
10	India	6	1.3%
11	Bulgaria	6	1.3%
12	Poland	6	1.3%
13	Ireland	5	1.1%
14	Canada	4	0.9%
15	Hong Kong	4	0.9%
16	Turkey	3	0.7%
17	Cyprus	3	0.7%
18	New Zealand	2	0.4%
19	Pakistan	2	0.4%
20	Philippines	2	0.4%
21	United Kingdom	2	0.4%
22	Viet Nam	2	0.4%
23	Taiwan	2	0.4%
24	Spain	2	0.4%
25	Russia	2	0.4%
26	Mexico	2	0.4%
27	Mongolia	2	0.4%
28	Switzerland	1	0.2%
29	Luxembourg	1	0.2%
30	Czech Republic	1	0.2%
31	Argentina	1	0.2%
32	Greece	1	0.2%