Rank	Countries/Territories	Count	Percent
1	United States	424	44.6%
2	China	250	26.3%
3	Germany	110	11.6%
4	France	31	3.3%
5	Latvia	21	2.2%
6	Canada	13	1.4%
7	Korea, Republic of	13	1.4%
8	Japan	11	1.2%
9	Ireland	10	1.1%
10	Spain	10	1.1%
11	India	9	0.9%
12	Cyprus	9	0.9%
13	Singapore	8	0.8%
14	Iran, Islamic Republic of	5	0.5%
15	Netherlands	4	0.4%
16	Taiwan	3	0.3%
17	Norway	3	0.3%
18	Brazil	3	0.3%
19	Bangladesh	2	0.2%
20	Argentina	2	0.2%
21	Turkey	2	0.2%
22	Malaysia	2	0.2%
23	Mongolia	1	0.1%
24	Nicaragua	1	0.1%
25	Russia	1	0.1%
26	Australia	1	0.1%
27	Hong Kong	1	0.1%
28	Jordan	1	0.1%