Rank	Countries/Territories	Count	Percent
1	United States	467	36.7%
2	China	427	33.6%
3	Germany	142	11.2%
4	France	36	2.8%
5	Japan	22	1.7%
6	India	18	1.4%
7	Canada	17	1.3%
8	United Kingdom	15	1.2%
9	Norway	13	1%
10	Italy	11	0.9%
11	Russia	10	0.8%
12	Spain	10	0.8%
13	Netherlands	8	0.6%
14	Hong Kong	8	0.6%
15	Korea, Republic of	7	0.6%
16	Israel	7	0.6%
17	Ukraine	6	0.5%
18	Singapore	5	0.4%
19	Cyprus	5	0.4%
20	Argentina	4	0.3%
21	Senegal	4	0.3%
22	Switzerland	3	0.2%
23	Taiwan	3	0.2%
24	Australia	3	0.2%
25	Bangladesh	3	0.2%
26	Latvia	3	0.2%
27	Iran, Islamic Republic of	3	0.2%
28	Indonesia	2	0.2%
29		2	0.2%
30	Finland	2	0.2%
31	Romania	2	0.2%
32	Saudi Arabia	1	0.1%
33	Turkey	1	0.1%
34	Ireland	1	0.1%
35	Lithuania	1	0.1%