Rank	Countries/Territories	Count	Percent
1	United States	468	44.3%
2	China	334	31.6%
3	Germany	63	6%
4	Japan	26	2.5%
5	India	18	1.7%
6	Canada	17	1.6%
7	Netherlands	15	1.4%
8	Lithuania	14	1.3%
9	Singapore	12	1.1%
10	Argentina	9	0.9%
11	Korea, Republic of	7	0.7%
12	Ireland	6	0.6%
13	Turkey	5	0.5%
14	Egypt	5	0.5%
15	Australia	4	0.4%
16	Poland	4	0.4%
17	United Kingdom	4	0.4%
18	Ukraine	3	0.3%
19	Slovakia	3	0.3%
20	Italy	3	0.3%
21	Bangladesh	3	0.3%
22	Brazil	3	0.3%
23	Bulgaria	3	0.3%
24	Bosnia and Herzegovina	2	0.2%
25	Cyprus	2	0.2%
26	Ecuador	2	0.2%
27	Iran, Islamic Republic of	2	0.2%
28	Latvia	2	0.2%
29	Mexico	2	0.2%
30	Mongolia	2	0.2%
31	South Africa	2	0.2%
32	Russia	2	0.2%
33	France	2	0.2%
34	Viet Nam	1	0.1%
35	Taiwan	1	0.1%
36	Tunisia	1	0.1%
37	Jordan	1	0.1%
38	Hong Kong	1	0.1%
39	Estonia	1	0.1%
40	Albania	1	0.1%