Rank	Countries/Territories	Count	Percent
1	United States	420	42%
2	China	246	24.6%
3	Germany	105	10.5%
4	India	50	5%
5	Japan	21	2.1%
6	Mongolia	18	1.8%
7	France	13	1.3%
8	Canada	12	1.2%
9	Malaysia	11	1.1%
10	Singapore	11	1.1%
11	Taiwan	10	1%
12	Netherlands	10	1%
13	Italy	10	1%
14	Australia	8	0.8%
15	Croatia	7	0.7%
16	Korea, Republic of	7	0.7%
17	Hong Kong	6	0.6%
18	Romania	4	0.4%
19	Argentina	4	0.4%
20	Iran, Islamic Republic of	4	0.4%
21	Indonesia	3	0.3%
22	Cyprus	3	0.3%
23	United Kingdom	3	0.3%
24	Russia	2	0.2%
25	Bulgaria	2	0.2%
26	Ireland	2	0.2%
27	Greece	2	0.2%
28	Belgium	1	0.1%
29	Egypt	1	0.1%
30	Nigeria	1	0.1%
31	Latvia	1	0.1%
32	Spain	1	0.1%
33	Sweden	1	0.1%