Rank	Countries/Territories	Count	Percent
1	United States	453	40.4%
2	China	365	32.6%
3	Germany	118	10.5%
4	Japan	39	3.5%
5	France	38	3.4%
6	Canada	15	1.3%
7	Korea, Republic of	11	1%
8	Netherlands	9	0.8%
9	Singapore	7	0.6%
10	India	7	0.6%
11	Argentina	6	0.5%
12	Italy	6	0.5%
13	Mongolia	6	0.5%
14	Cyprus	5	0.4%
15	Latvia	4	0.4%
16	Norway	4	0.4%
17	Russia	4	0.4%
18	Pakistan	3	0.3%
19	Ireland	3	0.3%
20	Australia	3	0.3%
21	Bangladesh	3	0.3%
22	Brazil	2	0.2%
23	Viet Nam	2	0.2%
24	Thailand	2	0.2%
25	United Kingdom	2	0.2%
26	Portugal	1	0.1%
27	Switzerland	1	0.1%
28	Hong Kong	1	0.1%
29	Malaysia	1	0.1%