Rank	Countries/Territories	Count	Percent
1	United States	471	36.4%
2	China	372	28.7%
3	Germany	157	12.1%
4	Korea, Republic of	67	5.2%
5	Canada	34	2.6%
6	Ukraine	31	2.4%
7	Japan	29	2.2%
8	India	20	1.5%
9	Cyprus	18	1.4%
10	France	17	1.3%
11	Netherlands	14	1.1%
12	Finland	11	0.8%
13	Singapore	10	0.8%
14	Senegal	8	0.6%
15	Taiwan	6	0.5%
16	Norway	6	0.5%
17	Russia	3	0.2%
18	United Kingdom	2	0.2%
19	Czech Republic	2	0.2%
20	Australia	2	0.2%
21	Hong Kong	2	0.2%
22	Kuwait	2	0.2%
23	Latvia	2	0.2%
24	Lithuania	1	0.1%
25	Ireland	1	0.1%
26	Bangladesh	1	0.1%
27	Brazil	1	0.1%
28	Argentina	1	0.1%
29	Spain	1	0.1%
30	Pakistan	1	0.1%
31	Poland	1	0.1%
32	Romania	1	0.1%