Rank	Countries/Territories	Count	Percent
1	United States	424	41.3%
2	China	352	34.3%
3	Germany	118	11.5%
4	Japan	23	2.2%
5	France	16	1.6%
6	Canada	12	1.2%
7	Netherlands	12	1.2%
8	Singapore	12	1.2%
9	Russia	10	1%
10	Ireland	6	0.6%
11	Australia	6	0.6%
12	Cyprus	5	0.5%
13	India	5	0.5%
14	Finland	4	0.4%
15	Hong Kong	3	0.3%
16	Iran, Islamic Republic of	2	0.2%
17	Korea, Republic of	2	0.2%
18	Malaysia	2	0.2%
19	United Kingdom	2	0.2%
20	Norway	2	0.2%
21	Serbia	1	0.1%
22	Spain	1	0.1%
23	Sweden	1	0.1%
24	Indonesia	1	0.1%
25	Ghana	1	0.1%
26	Egypt	1	0.1%
27	Brazil	1	0.1%
28	Argentina	1	0.1%