Rank	Countries/Territories	Count	Percent
1	United States	450	34.6%
2	China	402	30.9%
3	Germany	145	11.1%
4	Japan	46	3.5%
5	Korea, Republic of	20	1.5%
6	France	20	1.5%
7	Cyprus	17	1.3%
8	United Kingdom	17	1.3%
9	Singapore	15	1.2%
10	Canada	14	1.1%
11	Netherlands	13	1%
12	Turkey	13	1%
13	India	11	0.8%
14	Ethiopia	10	0.8%
15	Norway	9	0.7%
16	Russia	9	0.7%
17	Spain	9	0.7%
18	Hong Kong	6	0.5%
19	Australia	6	0.5%
20	Argentina	4	0.3%
21	Iraq	4	0.3%
22	Mexico	4	0.3%
23	Ukraine	4	0.3%
24	Taiwan	4	0.3%
25	Ireland	3	0.2%
26	Nigeria	3	0.2%
27	Portugal	3	0.2%
28	Romania	3	0.2%
29	Brazil	3	0.2%
30	Indonesia	3	0.2%
31	Iran, Islamic Republic of	3	0.2%
32	Finland	3	0.2%
33	Ecuador	2	0.2%
34	Austria	2	0.2%
35	Senegal	2	0.2%
36	Peru	2	0.2%
37	Mongolia	2	0.2%
38	Tanzania, United Republic of	2	0.2%
39	Switzerland	2	0.2%
40	Italy	2	0.2%
41	Slovakia	1	0.1%
42	South Africa	1	0.1%
43	Israel	1	0.1%
44	Philippines	1	0.1%
45	Poland	1	0.1%
46	Pakistan	1	0.1%
47	Palestine, State of	1	0.1%
48	Serbia	1	0.1%
49	Cambodia	1	0.1%
50	Denmark	1	0.1%