Rank	Countries/Territories	Count	Percent
1	United States	297	31.8%
2	China	281	30.1%
3	Germany	106	11.3%
4	India	78	8.4%
5	France	22	2.4%
6	Japan	20	2.1%
7	United Kingdom	16	1.7%
8	Mongolia	13	1.4%
9	Netherlands	11	1.2%
10	Singapore	11	1.2%
11	Canada	11	1.2%
12	Argentina	10	1.1%
13	Cyprus	7	0.7%
14	Iran, Islamic Republic of	5	0.5%
15	Latvia	4	0.4%
16	Egypt	4	0.4%
17	Australia	4	0.4%
18	Pakistan	4	0.4%
19	Sri Lanka	4	0.4%
20	Brazil	3	0.3%
21	Bangladesh	2	0.2%
22	Indonesia	2	0.2%
23	Korea, Republic of	2	0.2%
24	Yemen	2	0.2%
25	Philippines	2	0.2%
26	Portugal	2	0.2%
27	Romania	2	0.2%
28	Serbia	1	0.1%
29	Spain	1	0.1%
30	Norway	1	0.1%
31	Switzerland	1	0.1%
32	Thailand	1	0.1%
33	Italy	1	0.1%
34	Malaysia	1	0.1%
35	Jordan	1	0.1%
36	Georgia	1	0.1%