Rank	Countries/Territories	Count	Percent
1	United States	251	37.5%
2	China	169	25.3%
3	Germany	82	12.3%
4	Netherlands	17	2.5%
5	United Kingdom	15	2.2%
6	Spain	14	2.1%
7	France	14	2.1%
8	Iran, Islamic Republic of	13	1.9%
9	Switzerland	12	1.8%
10	India	9	1.3%
11	Japan	8	1.2%
12	Canada	7	1%
13	Australia	4	0.6%
14	Cyprus	4	0.6%
15	Indonesia	4	0.6%
16	Egypt	4	0.6%
17	Ireland	4	0.6%
18	Mexico	4	0.6%
19	Lithuania	4	0.6%
20	Costa Rica	3	0.4%
21	Ghana	3	0.4%
22	Colombia	2	0.3%
23	Brazil	2	0.3%
24		2	0.3%
25	Malta	2	0.3%
26	Jordan	2	0.3%
27	Norway	2	0.3%
28	Viet Nam	2	0.3%
29	Paraguay	1	0.1%
30	Portugal	1	0.1%
31	Russia	1	0.1%
32	Singapore	1	0.1%
33	Slovenia	1	0.1%
34	South Africa	1	0.1%
35	Italy	1	0.1%
36	Denmark	1	0.1%
37	Greece	1	0.1%
38	Hong Kong	1	0.1%