Rank	Countries/Territories	Count	Percent
1	United States	725	47%
2	China	435	28.2%
3	Germany	117	7.6%
4	Japan	33	2.1%
5	United Kingdom	27	1.8%
6	Canada	25	1.6%
7	France	25	1.6%
8	Netherlands	21	1.4%
9	Singapore	21	1.4%
10	Ireland	9	0.6%
11	Sweden	8	0.5%
12	Australia	8	0.5%
13	Cyprus	7	0.5%
14	Italy	7	0.5%
15	Taiwan	6	0.4%
16	Russia	6	0.4%
17	Argentina	6	0.4%
18	Korea, Republic of	5	0.3%
19	Hong Kong	5	0.3%
20	India	5	0.3%
21	Iran, Islamic Republic of	5	0.3%
22	Cuba	4	0.3%
23	Turkey	4	0.3%
24	Mexico	3	0.2%
25	Ecuador	3	0.2%
26	Hungary	3	0.2%
27	Malaysia	2	0.1%
28	Mauritius	2	0.1%
29	Mongolia	2	0.1%
30	Puerto Rico	2	0.1%
31	Ukraine	2	0.1%
32	Serbia	2	0.1%
33	Tajikistan	2	0.1%
34	Romania	1	0.1%
35	Poland	1	0.1%
36	Egypt	1	0.1%
37	Zambia	1	0.1%