Rank	Countries/Territories	Count	Percent
1	United States	580	42%
2	China	456	33%
3	Germany	101	7.3%
4	France	84	6.1%
5	Canada	64	4.6%
6	Netherlands	15	1.1%
7	Switzerland	11	0.8%
8	Ireland	9	0.7%
9	India	8	0.6%
10	Singapore	6	0.4%
11	Korea, Republic of	5	0.4%
12	Hong Kong	5	0.4%
13	Argentina	5	0.4%
14	Latvia	4	0.3%
15	Japan	4	0.3%
16	Russia	4	0.3%
17	Australia	3	0.2%
18	Belgium	3	0.2%
19	Cyprus	2	0.1%
20	Iran, Islamic Republic of	2	0.1%
21	Iraq	2	0.1%
22	Serbia	2	0.1%
23	Spain	2	0.1%
24	Sweden	2	0.1%
25	Norway	1	0.1%
26	Poland	1	0.1%
27	Finland	1	0.1%