Rank	Countries/Territories	Count	Percent
1	United States	534	34.8%
2	China	524	34.2%
3	Germany	123	8%
4	India	36	2.3%
5	Japan	35	2.3%
6	Netherlands	32	2.1%
7	Egypt	20	1.3%
8	Korea, Republic of	19	1.2%
9	France	17	1.1%
10	Singapore	15	1%
11	United Kingdom	13	0.8%
12	Russia	11	0.7%
13	Ireland	11	0.7%
14	Thailand	9	0.6%
15	Denmark	8	0.5%
16	Hong Kong	8	0.5%
17	Norway	8	0.5%
18	Romania	7	0.5%
19	Iran, Islamic Republic of	7	0.5%
20	Australia	7	0.5%
21	Canada	7	0.5%
22	Switzerland	7	0.5%
23	Sweden	6	0.4%
24	Tunisia	6	0.4%
25	Israel	5	0.3%
26	Mexico	5	0.3%
27	Malaysia	4	0.3%
28	Portugal	4	0.3%
29	Indonesia	4	0.3%
30	Cyprus	4	0.3%
31	Turkey	4	0.3%
32	Spain	4	0.3%
33	Taiwan	3	0.2%
34	Ukraine	3	0.2%
35	Viet Nam	3	0.2%
36	Pakistan	3	0.2%
37	Philippines	2	0.1%
38	Morocco	2	0.1%
39	New Zealand	2	0.1%
40	Italy	2	0.1%
41	Zimbabwe	2	0.1%
42	Tanzania, United Republic of	1	0.1%
43	Algeria	1	0.1%
44	Bulgaria	1	0.1%
45	Nigeria	1	0.1%
46	Mauritius	1	0.1%
47	Serbia	1	0.1%
48	South Africa	1	0.1%