Rank	Countries/Territories	Count	Percent
1	United States	487	42.9%
2	China	387	34.1%
3	Germany	94	8.3%
4	Japan	26	2.3%
5	Korea, Republic of	23	2%
6	Canada	15	1.3%
7	United Kingdom	12	1.1%
8	Singapore	12	1.1%
9	Hong Kong	11	1%
10	Russia	10	0.9%
11	France	9	0.8%
12	Ireland	8	0.7%
13	Netherlands	6	0.5%
14	India	5	0.4%
15	Cyprus	4	0.4%
16	Australia	4	0.4%
17	Iran, Islamic Republic of	3	0.3%
18	Ukraine	3	0.3%
19	Viet Nam	2	0.2%
20	Taiwan	2	0.2%
21	Bulgaria	2	0.2%
22	Argentina	2	0.2%
23	Georgia	1	0.1%
24	Macao	1	0.1%
25	Malaysia	1	0.1%
26	Mongolia	1	0.1%
27	South Africa	1	0.1%
28	Sweden	1	0.1%
29	Switzerland	1	0.1%