Rank	Countries/Territories	Count	Percent
1	United States	520	49.5%
2	China	282	26.8%
3	Germany	91	8.7%
4	France	21	2%
5	Canada	16	1.5%
6	Japan	13	1.2%
7	Netherlands	9	0.9%
8	Korea, Republic of	8	0.8%
9	Hong Kong	7	0.7%
10	India	7	0.7%
11	Australia	7	0.7%
12	Spain	7	0.7%
13	Singapore	5	0.5%
14	South Africa	4	0.4%
15	Thailand	4	0.4%
16	Ukraine	4	0.4%
17	Brazil	4	0.4%
18	Cyprus	4	0.4%
19	Denmark	4	0.4%
20	Iran, Islamic Republic of	4	0.4%
21	Ireland	4	0.4%
22	Egypt	3	0.3%
23	United Kingdom	3	0.3%
24	Taiwan	3	0.3%
25	Turkey	2	0.2%
26	Viet Nam	2	0.2%
27	Slovakia	2	0.2%
28	Argentina	2	0.2%
29	Italy	2	0.2%
30	Lithuania	1	0.1%
31	Malaysia	1	0.1%
32	Mongolia	1	0.1%
33	Finland	1	0.1%
34	Norway	1	0.1%
35	Romania	1	0.1%
36	Russia	1	0.1%