Rank	Countries/Territories	Count	Percent
1	United States	574	42.5%
2	China	431	31.9%
3	Germany	142	10.5%
4	France	43	3.2%
5	Japan	29	2.1%
6	Canada	16	1.2%
7	Norway	13	1%
8	Singapore	13	1%
9	Ireland	9	0.7%
10	Netherlands	7	0.5%
11	Argentina	7	0.5%
12	Australia	7	0.5%
13	Latvia	7	0.5%
14	Romania	6	0.4%
15	Sweden	6	0.4%
16	Taiwan	6	0.4%
17	Korea, Republic of	5	0.4%
18	Cyprus	5	0.4%
19	Russia	4	0.3%
20	Iraq	3	0.2%
21	Hong Kong	3	0.2%
22	India	3	0.2%
23	Iran, Islamic Republic of	2	0.1%
24	Chile	2	0.1%
25	Mauritius	2	0.1%
26	Poland	2	0.1%
27	Ukraine	1	0.1%
28	United Kingdom	1	0.1%
29	Malaysia	1	0.1%