Rank	Countries/Territories	Count	Percent
1	United States	579	44.5%
2	China	307	23.6%
3	Germany	121	9.3%
4	Netherlands	43	3.3%
5	Japan	42	3.2%
6	France	41	3.2%
7		29	2.2%
8	India	18	1.4%
9	Canada	17	1.3%
10	Russia	17	1.3%
11	Singapore	11	0.8%
12	Australia	8	0.6%
13	Bulgaria	7	0.5%
14	Ireland	6	0.5%
15	Hong Kong	6	0.5%
16	Cyprus	4	0.3%
17	Korea, Republic of	4	0.3%
18	Libya	3	0.2%
19	Portugal	3	0.2%
20	Thailand	3	0.2%
21	Colombia	3	0.2%
22	Ethiopia	3	0.2%
23	Italy	3	0.2%
24	Ukraine	3	0.2%
25	Israel	2	0.2%
26	Iran, Islamic Republic of	2	0.2%
27	Brazil	2	0.2%
28	Sweden	2	0.2%
29	Taiwan	2	0.2%
30	Pakistan	2	0.2%
31	Jordan	2	0.2%
32	Latvia	1	0.1%
33	Mauritius	1	0.1%
34	Turkey	1	0.1%
35	Romania	1	0.1%
36	Ecuador	1	0.1%
37	United Arab Emirates	1	0.1%