Rank	Countries/Territories	Count	Percent
1	United States	406	39%
2	China	308	29.6%
3	Germany	116	11.1%
4	France	58	5.6%
5	Japan	24	2.3%
6		23	2.2%
7	Netherlands	20	1.9%
8	Singapore	10	1%
9	India	10	1%
10	Korea, Republic of	8	0.8%
11	United Kingdom	7	0.7%
12	South Africa	6	0.6%
13	Ireland	6	0.6%
14	Cyprus	6	0.6%
15	Iran, Islamic Republic of	5	0.5%
16	Canada	3	0.3%
17	Argentina	3	0.3%
18	Russia	3	0.3%
19	Latvia	2	0.2%
20	Lithuania	2	0.2%
21	Taiwan	2	0.2%
22	Australia	2	0.2%
23	Egypt	2	0.2%
24	Hong Kong	2	0.2%
25	Italy	2	0.2%
26	Finland	1	0.1%
27	Belgium	1	0.1%
28	Bulgaria	1	0.1%
29	Viet Nam	1	0.1%
30	Mauritius	1	0.1%
31	Switzerland	1	0.1%