Rank	Countries/Territories	Count	Percent
1	United States	321	39.6%
2	China	221	27.3%
3	Germany	72	8.9%
4	Brazil	26	3.2%
5	Canada	20	2.5%
6	Lithuania	18	2.2%
7	Taiwan	18	2.2%
8	France	17	2.1%
9	India	10	1.2%
10	Netherlands	10	1.2%
11	Japan	9	1.1%
12	Poland	7	0.9%
13	Singapore	6	0.7%
14	Korea, Republic of	5	0.6%
15	Iran, Islamic Republic of	4	0.5%
16	Cyprus	4	0.5%
17	Egypt	4	0.5%
18	Turkey	4	0.5%
19	Australia	3	0.4%
20	Chile	2	0.2%
21	Ethiopia	2	0.2%
22	Hong Kong	2	0.2%
23	Latvia	2	0.2%
24	Portugal	2	0.2%
25	Italy	2	0.2%
26	Russia	2	0.2%
27	South Africa	2	0.2%
28	Sri Lanka	2	0.2%
29	Sweden	2	0.2%
30	Switzerland	1	0.1%
31	Slovakia	1	0.1%
32	Romania	1	0.1%
33	Mongolia	1	0.1%
34	Argentina	1	0.1%
35	Iraq	1	0.1%
36	Ireland	1	0.1%
37	Colombia	1	0.1%
38	Bangladesh	1	0.1%
39	Belarus	1	0.1%
40	Ukraine	1	0.1%