Rank	Countries/Territories	Count	Percent
1	United States	558	44.3%
2	China	275	21.8%
3	Germany	129	10.2%
4	United Kingdom	74	5.9%
5	France	52	4.1%
6	Japan	34	2.7%
7	Netherlands	17	1.3%
8	Singapore	12	1%
9	India	12	1%
10	Canada	11	0.9%
11	Hong Kong	10	0.8%
12	Ireland	8	0.6%
13	South Africa	8	0.6%
14	Poland	7	0.6%
15	Korea, Republic of	4	0.3%
16	Hungary	4	0.3%
17	Australia	4	0.3%
18	Cyprus	4	0.3%
19	Egypt	4	0.3%
20	Brazil	3	0.2%
21	Peru	3	0.2%
22	Namibia	3	0.2%
23	Romania	3	0.2%
24	Russia	2	0.2%
25	Ukraine	2	0.2%
26	Spain	2	0.2%
27	Taiwan	2	0.2%
28	Argentina	2	0.2%
29	Greece	2	0.2%
30	Iran, Islamic Republic of	2	0.2%
31	Israel	1	0.1%
32	Finland	1	0.1%
33	Turkey	1	0.1%
34	Mexico	1	0.1%
35	Morocco	1	0.1%
36	Kenya	1	0.1%
37	Viet Nam	1	0.1%