Rank	Countries/Territories	Count	Percent
1	United States	220	34.2%
2	China	213	33.1%
3	Germany	36	5.6%
4	Japan	16	2.5%
5	Netherlands	14	2.2%
6	Singapore	13	2%
7	Australia	13	2%
8	Israel	11	1.7%
9	Ireland	9	1.4%
10	Turkey	9	1.4%
11	United Kingdom	9	1.4%
12	France	8	1.2%
13	Iran, Islamic Republic of	7	1.1%
14	India	5	0.8%
15	Canada	5	0.8%
16	Taiwan	5	0.8%
17	Thailand	5	0.8%
18	Norway	4	0.6%
19	Italy	4	0.6%
20		3	0.5%
21	Korea, Republic of	3	0.5%
22	Ukraine	3	0.5%
23	Poland	3	0.5%
24	Romania	3	0.5%
25	Russia	3	0.5%
26	Kuwait	2	0.3%
27	Cyprus	2	0.3%
28	Austria	2	0.3%
29	Hong Kong	2	0.3%
30	Switzerland	2	0.3%
31	Viet Nam	2	0.3%
32	Botswana	1	0.2%
33	Brazil	1	0.2%
34	Lithuania	1	0.2%
35	Mongolia	1	0.2%
36	Philippines	1	0.2%
37	Nigeria	1	0.2%
38	Spain	1	0.2%