Rank	Countries/Territories	Count	Percent
1	United States	245	44.5%
2	China	139	25.2%
3	Germany	29	5.3%
4	Canada	17	3.1%
5	France	12	2.2%
6	Japan	12	2.2%
7	Netherlands	9	1.6%
8	Czech Republic	9	1.6%
9	Australia	8	1.5%
10	United Kingdom	6	1.1%
11	Italy	4	0.7%
12	Venezuela, Bolivarian Republic of	4	0.7%
13	Bulgaria	4	0.7%
14	Cyprus	4	0.7%
15	Romania	4	0.7%
16	Spain	4	0.7%
17	Turkey	3	0.5%
18	Ireland	3	0.5%
19	Colombia	3	0.5%
20	Brazil	2	0.4%
21	India	2	0.4%
22	Indonesia	2	0.4%
23	Egypt	2	0.4%
24	Hong Kong	2	0.4%
25	Russia	2	0.4%
26	Singapore	2	0.4%
27	Philippines	2	0.4%
28	Portugal	2	0.4%
29	Lithuania	2	0.4%
30	Mauritius	2	0.4%
31	Mongolia	1	0.2%
32	Korea, Republic of	1	0.2%
33	New Zealand	1	0.2%
34	Nigeria	1	0.2%
35	Pakistan	1	0.2%
36	Ukraine	1	0.2%
37	Switzerland	1	0.2%
38	Hungary	1	0.2%
39	Cote D'ivoire	1	0.2%
40	Denmark	1	0.2%