Rank	Countries/Territories	Count	Percent
1	United States	657	39.7%
2	China	622	37.6%
3	Germany	132	8%
4	Canada	35	2.1%
5	France	22	1.3%
6	Korea, Republic of	19	1.1%
7	Netherlands	18	1.1%
8	Japan	17	1%
9	Australia	16	1%
10	Russia	12	0.7%
11	India	10	0.6%
12	United Kingdom	9	0.5%
13	Singapore	8	0.5%
14	Senegal	7	0.4%
15	Poland	7	0.4%
16	Argentina	7	0.4%
17	Colombia	7	0.4%
18	Cyprus	7	0.4%
19	Ireland	6	0.4%
20	Latvia	5	0.3%
21	Norway	4	0.2%
22	Iran, Islamic Republic of	4	0.2%
23	Hong Kong	3	0.2%
24	Saudi Arabia	3	0.2%
25	Turkey	3	0.2%
26	Switzerland	2	0.1%
27	Hungary	2	0.1%
28	Indonesia	2	0.1%
29	Israel	2	0.1%
30	Uruguay	2	0.1%
31	Denmark	1	0.1%
32	Afghanistan	1	0.1%
33	Taiwan	1	0.1%
34	Sri Lanka	1	0.1%
35	Romania	1	0.1%