Rank	Countries/Territories	Count	Percent
1	United States	250	36.7%
2	China	158	23.2%
3	Germany	68	10%
4	Japan	28	4.1%
5	Canada	26	3.8%
6	Hong Kong	23	3.4%
7	India	19	2.8%
8	France	18	2.6%
9	Iran, Islamic Republic of	14	2.1%
10	Netherlands	9	1.3%
11	Taiwan	8	1.2%
12	Cyprus	8	1.2%
13	Thailand	6	0.9%
14	United Kingdom	4	0.6%
15	Norway	4	0.6%
16	Romania	4	0.6%
17	Singapore	3	0.4%
18	Egypt	3	0.4%
19	Belgium	3	0.4%
20	Korea, Republic of	3	0.4%
21	Malaysia	3	0.4%
22	Morocco	2	0.3%
23	Lithuania	2	0.3%
24	Ireland	2	0.3%
25	Australia	2	0.3%
26	Greece	2	0.3%
27	Pakistan	2	0.3%
28	Poland	2	0.3%
29	Turkey	2	0.3%
30	Ukraine	1	0.1%
31	South Africa	1	0.1%
32	Spain	1	0.1%