Rank	Countries/Territories	Count	Percent
1	United States	336	36.1%
2	China	275	29.5%
3	Germany	122	13.1%
4		35	3.8%
5	Canada	31	3.3%
6	India	23	2.5%
7	Japan	17	1.8%
8	Netherlands	13	1.4%
9	Hong Kong	11	1.2%
10	Australia	9	1%
11	France	8	0.9%
12	Greece	5	0.5%
13	United Kingdom	5	0.5%
14	Korea, Republic of	4	0.4%
15	Iran, Islamic Republic of	3	0.3%
16	Cyprus	3	0.3%
17	Belgium	3	0.3%
18	Brazil	3	0.3%
19	Singapore	3	0.3%
20	Spain	2	0.2%
21	Mongolia	2	0.2%
22	Norway	2	0.2%
23	Philippines	2	0.2%
24	Taiwan	2	0.2%
25	Thailand	2	0.2%
26	Bangladesh	2	0.2%
27	Ireland	2	0.2%
28	Italy	1	0.1%
29	Malaysia	1	0.1%
30	Cameroon	1	0.1%
31	Finland	1	0.1%
32	Ukraine	1	0.1%
33	Switzerland	1	0.1%
34	South Africa	1	0.1%