Rank	Countries/Territories	Count	Percent
1	United States	228	33.9%
2	China	227	33.7%
3	Germany	52	7.7%
4	France	15	2.2%
5	Japan	15	2.2%
6	Netherlands	15	2.2%
7	Botswana	11	1.6%
8	Malaysia	9	1.3%
9	Singapore	9	1.3%
10	Poland	6	0.9%
11	Bulgaria	6	0.9%
12	Hong Kong	6	0.9%
13	India	6	0.9%
14	Ireland	5	0.7%
15	Australia	5	0.7%
16	Cyprus	5	0.7%
17	Mexico	5	0.7%
18	Pakistan	4	0.6%
19	Tunisia	4	0.6%
20	Turkey	4	0.6%
21	Canada	4	0.6%
22	Korea, Republic of	3	0.4%
23	Romania	3	0.4%
24	Russia	2	0.3%
25	Spain	2	0.3%
26	Taiwan	2	0.3%
27	United Kingdom	2	0.3%
28	Philippines	2	0.3%
29	Mongolia	2	0.3%
30	New Zealand	2	0.3%
31	Colombia	2	0.3%
32	Viet Nam	2	0.3%
33	Czech Republic	1	0.1%
34	Argentina	1	0.1%
35	Luxembourg	1	0.1%
36	Indonesia	1	0.1%
37	Greece	1	0.1%
38	Portugal	1	0.1%
39	Ukraine	1	0.1%
40	Switzerland	1	0.1%