Rank	Countries/Territories	Count	Percent
1	United States	517	47.2%
2	China	249	22.7%
3	Germany	91	8.3%
4	India	42	3.8%
5	Japan	33	3%
6	Russia	21	1.9%
7	Korea, Republic of	18	1.6%
8	Canada	18	1.6%
9	Brazil	17	1.6%
10	Latvia	14	1.3%
11	Netherlands	10	0.9%
12	Taiwan	6	0.5%
13	Turkey	6	0.5%
14	Ukraine	4	0.4%
15	Ireland	4	0.4%
16	Australia	4	0.4%
17	Hong Kong	4	0.4%
18	Egypt	3	0.3%
19	Colombia	3	0.3%
20	South Africa	3	0.3%
21	Spain	3	0.3%
22	United Kingdom	2	0.2%
23	Nigeria	2	0.2%
24	Croatia	2	0.2%
25	Argentina	2	0.2%
26	Belgium	2	0.2%
27	Yemen	2	0.2%
28	Zambia	1	0.1%
29	Singapore	1	0.1%
30	Viet Nam	1	0.1%
31	Bosnia and Herzegovina	1	0.1%
32	Algeria	1	0.1%
33	Bangladesh	1	0.1%
34	Cyprus	1	0.1%
35	France	1	0.1%
36	Norway	1	0.1%
37	Israel	1	0.1%
38	Iran, Islamic Republic of	1	0.1%
39	Sweden	1	0.1%
40	Switzerland	1	0.1%