Rank	Countries/Territories	Count	Percent
1	United States	392	42.6%
2	China	198	21.5%
3	Germany	112	12.2%
4	Czech Republic	31	3.4%
5	Japan	23	2.5%
6	India	22	2.4%
7	Canada	22	2.4%
8	France	19	2.1%
9	Mongolia	15	1.6%
10	Netherlands	13	1.4%
11	Ireland	13	1.4%
12	Singapore	7	0.8%
13	Sweden	7	0.8%
14	Switzerland	6	0.7%
15	Cyprus	6	0.7%
16	Australia	4	0.4%
17	Korea, Republic of	4	0.4%
18	Trinidad and Tobago	3	0.3%
19	Malaysia	3	0.3%
20	United Kingdom	2	0.2%
21	Lithuania	2	0.2%
22	Kenya	2	0.2%
23	Russia	2	0.2%
24	Argentina	2	0.2%
25	Belgium	2	0.2%
26	Ethiopia	2	0.2%
27	Finland	1	0.1%
28	Hong Kong	1	0.1%
29	Croatia	1	0.1%
30	Algeria	1	0.1%
31	Bangladesh	1	0.1%
32	Spain	1	0.1%