Rank	Countries/Territories	Count	Percent
1	United States	545	44.2%
2	China	367	29.7%
3	Germany	137	11.1%
4	Canada	24	1.9%
5	Japan	21	1.7%
6	United Kingdom	19	1.5%
7	France	16	1.3%
8	Hong Kong	16	1.3%
9	Singapore	15	1.2%
10	Australia	12	1%
11	Netherlands	10	0.8%
12	Cyprus	7	0.6%
13	Poland	6	0.5%
14	Switzerland	5	0.4%
15	South Africa	4	0.3%
16	Spain	4	0.3%
17	India	4	0.3%
18	Iran, Islamic Republic of	3	0.2%
19	Ireland	3	0.2%
20	Russia	3	0.2%
21	Korea, Republic of	3	0.2%
22	Romania	2	0.2%
23	Belgium	2	0.2%
24	Ukraine	2	0.2%
25	Taiwan	1	0.1%
26	Austria	1	0.1%
27	Malaysia	1	0.1%
28	Finland	1	0.1%