Rank	Countries/Territories	Count	Percent
1	United States	461	37.1%
2	China	386	31.1%
3	Germany	94	7.6%
4	Latvia	62	5%
5	France	48	3.9%
6		42	3.4%
7	Sweden	29	2.3%
8	Japan	18	1.5%
9	Netherlands	16	1.3%
10	United Kingdom	15	1.2%
11	Canada	15	1.2%
12	Singapore	10	0.8%
13	Cyprus	8	0.6%
14	India	5	0.4%
15	Australia	4	0.3%
16	Pakistan	3	0.2%
17	Ireland	3	0.2%
18	Mongolia	2	0.2%
19	Romania	2	0.2%
20	Argentina	2	0.2%
21	Egypt	2	0.2%
22	Iran, Islamic Republic of	2	0.2%
23	Jordan	2	0.2%
24	Korea, Republic of	2	0.2%
25	Hong Kong	2	0.2%
26	Croatia	1	0.1%
27	Bangladesh	1	0.1%
28	Norway	1	0.1%
29	Malaysia	1	0.1%
30	Taiwan	1	0.1%
31	Ukraine	1	0.1%