Rank	Countries/Territories	Count	Percent
1	United States	204	35.5%
2	China	194	33.7%
3	Germany	41	7.1%
4	Japan	22	3.8%
5	Korea, Republic of	16	2.8%
6	Canada	13	2.3%
7	Singapore	10	1.7%
8	France	9	1.6%
9	Netherlands	8	1.4%
10	United Kingdom	6	1%
11	India	6	1%
12	Iran, Islamic Republic of	6	1%
13	United Arab Emirates	5	0.9%
14	Hong Kong	4	0.7%
15	Taiwan	3	0.5%
16	Turkey	3	0.5%
17	Ireland	3	0.5%
18	Cyprus	3	0.5%
19	Ecuador	2	0.3%
20	Egypt	2	0.3%
21	Argentina	2	0.3%
22	Australia	2	0.3%
23	Belgium	2	0.3%
24	Switzerland	2	0.3%
25	New Zealand	1	0.2%
26	Russia	1	0.2%
27	Virgin Islands, British	1	0.2%
28	Italy	1	0.2%
29	Lithuania	1	0.2%
30	Mauritius	1	0.2%
31	Morocco	1	0.2%