Rank	Countries/Territories	Count	Percent
1	United States	241	38.6%
2	China	139	22.2%
3	Germany	63	10.1%
4	Japan	14	2.2%
5	Canada	12	1.9%
6	Russia	11	1.8%
7	United Kingdom	11	1.8%
8	Switzerland	10	1.6%
9	France	10	1.6%
10	Ireland	9	1.4%
11	Argentina	8	1.3%
12	Ecuador	8	1.3%
13	Egypt	7	1.1%
14	Korea, Republic of	6	1%
15	Mexico	5	0.8%
16	Netherlands	5	0.8%
17	Italy	5	0.8%
18	Hong Kong	5	0.8%
19	India	5	0.8%
20	Australia	4	0.6%
21	Iran, Islamic Republic of	4	0.6%
22	Latvia	4	0.6%
23	Taiwan	4	0.6%
24	Philippines	4	0.6%
25	Portugal	3	0.5%
26	Peru	3	0.5%
27	Cyprus	3	0.5%
28	Indonesia	2	0.3%
29	Pakistan	2	0.3%
30	Singapore	2	0.3%
31	Ukraine	2	0.3%
32	United Arab Emirates	2	0.3%
33	Turkey	1	0.2%
34	Spain	1	0.2%
35	Sweden	1	0.2%
36	Malaysia	1	0.2%
37	New Zealand	1	0.2%
38	Norway	1	0.2%
39	Hungary	1	0.2%
40	Greece	1	0.2%
41	Denmark	1	0.2%
42	Estonia	1	0.2%
43	Brazil	1	0.2%
44	Colombia	1	0.2%