Rank	Countries/Territories	Count	Percent
1	United States	339	38.6%
2	China	274	31.2%
3	Germany	82	9.3%
4	Korea, Republic of	18	2%
5	Japan	17	1.9%
6	Taiwan	12	1.4%
7	India	12	1.4%
8	Netherlands	11	1.3%
9	Canada	9	1%
10	Paraguay	8	0.9%
11	Ukraine	7	0.8%
12	Hong Kong	7	0.8%
13	Australia	6	0.7%
14	Romania	6	0.7%
15	Singapore	6	0.7%
16	Brazil	5	0.6%
17	Egypt	5	0.6%
18	Turkey	5	0.6%
19	France	4	0.5%
20	Ireland	4	0.5%
21	Palestine, State of	3	0.3%
22	South Africa	3	0.3%
23	Serbia	3	0.3%
24	Cyprus	3	0.3%
25	Argentina	3	0.3%
26	Viet Nam	3	0.3%
27	Indonesia	2	0.2%
28	Macao	2	0.2%
29	Malaysia	2	0.2%
30	United Arab Emirates	2	0.2%
31	United Kingdom	2	0.2%
32	Tajikistan	2	0.2%
33	Philippines	2	0.2%
34	Israel	2	0.2%
35	Mexico	2	0.2%
36	Italy	1	0.1%
37	Thailand	1	0.1%
38	Spain	1	0.1%
39	Mauritius	1	0.1%
40	Hungary	1	0.1%
41	Georgia	1	0.1%