Rank	Countries/Territories	Count	Percent
1	United States	411	31.4%
2	China	404	30.9%
3	Germany	62	4.7%
4	Hungary	51	3.9%
5	India	50	3.8%
6	Japan	37	2.8%
7	Taiwan	28	2.1%
8	Russia	22	1.7%
9	Singapore	21	1.6%
10	Brazil	20	1.5%
11	Korea, Republic of	18	1.4%
12	Latvia	15	1.1%
13	Australia	11	0.8%
14	Canada	10	0.8%
15	Israel	10	0.8%
16	Sweden	10	0.8%
17	Ireland	9	0.7%
18	Belgium	9	0.7%
19	Czech Republic	9	0.7%
20	Austria	6	0.5%
21	Italy	6	0.5%
22	Portugal	6	0.5%
23	United Kingdom	6	0.5%
24	Thailand	5	0.4%
25	Turkey	5	0.4%
26	Ukraine	5	0.4%
27	Pakistan	5	0.4%
28	Iran, Islamic Republic of	5	0.4%
29	Netherlands	5	0.4%
30	Denmark	4	0.3%
31	Egypt	4	0.3%
32	France	3	0.2%
33	Algeria	3	0.2%
34	Jordan	3	0.2%
35	South Africa	3	0.2%
36	Slovakia	2	0.2%
37	Palestine, State of	2	0.2%
38	Romania	2	0.2%
39	United Arab Emirates	2	0.2%
40	Norway	2	0.2%
41	Iceland	2	0.2%
42	Hong Kong	2	0.2%
43	Greece	2	0.2%
44	Honduras	1	0.1%
45	Cyprus	1	0.1%
46	Antigua and Barbuda	1	0.1%
47	Bangladesh	1	0.1%
48	Bulgaria	1	0.1%
49	Lebanon	1	0.1%
50	Lithuania	1	0.1%
51	Malaysia	1	0.1%
52	Mexico	1	0.1%
53	Nepal	1	0.1%
54	Virgin Islands, British	1	0.1%