Rank	Countries/Territories	Count	Percent
1	United States	539	32.9%
2	China	440	26.9%
3	Germany	141	8.6%
4	United Kingdom	110	6.7%
5	Denmark	42	2.6%
6	Brazil	33	2%
7	Japan	31	1.9%
8	Korea, Republic of	29	1.8%
9	India	23	1.4%
10	France	19	1.2%
11	Netherlands	18	1.1%
12	Taiwan	16	1%
13	Latvia	14	0.9%
14	Australia	14	0.9%
15	Chile	12	0.7%
16	Czech Republic	11	0.7%
17	Spain	10	0.6%
18	Turkey	9	0.6%
19	Canada	9	0.6%
20	Cyprus	8	0.5%
21	Hong Kong	7	0.4%
22	Italy	7	0.4%
23	Pakistan	7	0.4%
24	Russia	7	0.4%
25	Ukraine	6	0.4%
26	United Arab Emirates	6	0.4%
27	Ireland	6	0.4%
28	Greece	6	0.4%
29	Belgium	6	0.4%
30	Indonesia	5	0.3%
31	Iran, Islamic Republic of	4	0.2%
32	Thailand	4	0.2%
33	Singapore	3	0.2%
34	Israel	3	0.2%
35	Malaysia	3	0.2%
36	Norway	2	0.1%
37	Iraq	2	0.1%
38	Bhutan	2	0.1%
39	Austria	2	0.1%
40	Armenia	2	0.1%
41	Egypt	2	0.1%
42	South Africa	2	0.1%
43	Saudi Arabia	2	0.1%
44	Poland	2	0.1%
45	Romania	2	0.1%
46	Tanzania, United Republic of	2	0.1%
47	Sweden	1	0.1%
48	Switzerland	1	0.1%
49	Philippines	1	0.1%
50	Georgia	1	0.1%
51	Lebanon	1	0.1%
52	Lao People's Democratic Republic	1	0.1%