Rank	Countries/Territories	Count	Percent
1	United States	223	33.7%
2	China	156	23.6%
3	Germany	53	8%
4	Australia	36	5.4%
5	United Kingdom	20	3%
6	Netherlands	19	2.9%
7	India	14	2.1%
8	Japan	13	2%
9	Sweden	13	2%
10	Korea, Republic of	8	1.2%
11	Indonesia	8	1.2%
12	Brazil	8	1.2%
13	France	7	1.1%
14	Turkey	7	1.1%
15	Taiwan	6	0.9%
16	Canada	5	0.8%
17	Portugal	5	0.8%
18	Russia	4	0.6%
19	Lao People's Democratic Republic	4	0.6%
20	Ireland	4	0.6%
21	Burkina Faso	4	0.6%
22	Austria	3	0.5%
23	Hong Kong	3	0.5%
24	Iraq	3	0.5%
25	Egypt	3	0.5%
26	Singapore	3	0.5%
27	Palestine, State of	3	0.5%
28	Philippines	3	0.5%
29	Switzerland	2	0.3%
30	Norway	2	0.3%
31	South Africa	2	0.3%
32	Romania	2	0.3%
33	Kuwait	2	0.3%
34	Estonia	2	0.3%
35	Greece	2	0.3%
36	Argentina	1	0.2%
37	Denmark	1	0.2%
38	Malaysia	1	0.2%
39	Israel	1	0.2%
40	Jordan	1	0.2%
41	Pakistan	1	0.2%
42	Peru	1	0.2%
43	Thailand	1	0.2%
44	United Arab Emirates	1	0.2%