Rank	Countries/Territories	Count	Percent
1	United States	819	38.7%
2	China	512	24.2%
3	Germany	236	11.2%
4	Latvia	69	3.3%
5	Czech Republic	51	2.4%
6	Netherlands	51	2.4%
7	Canada	40	1.9%
8	Russia	39	1.8%
9	France	38	1.8%
10	India	37	1.7%
11	Singapore	21	1%
12	Japan	20	0.9%
13	Norway	17	0.8%
14	Iraq	15	0.7%
15	Korea, Republic of	10	0.5%
16	Australia	10	0.5%
17	Turkey	9	0.4%
18	United Kingdom	8	0.4%
19	Spain	7	0.3%
20	Bosnia and Herzegovina	6	0.3%
21	Bulgaria	6	0.3%
22	Chile	5	0.2%
23	Brazil	5	0.2%
24	Denmark	5	0.2%
25	Cyprus	5	0.2%
26	Iran, Islamic Republic of	5	0.2%
27	Hong Kong	5	0.2%
28	South Africa	5	0.2%
29	Taiwan	4	0.2%
30	Portugal	4	0.2%
31	Romania	4	0.2%
32	Ireland	4	0.2%
33	Malaysia	4	0.2%
34	Israel	3	0.1%
35	Thailand	3	0.1%
36	Slovakia	3	0.1%
37	Viet Nam	3	0.1%
38	Ukraine	2	0.1%
39	Tajikistan	2	0.1%
40	Philippines	2	0.1%
41	Mexico	2	0.1%
42	Lithuania	2	0.1%
43	Greece	2	0.1%
44	Egypt	2	0.1%
45	Austria	2	0.1%
46	Argentina	2	0.1%
47	Belgium	1	0%
48	Finland	1	0%
49	Luxembourg	1	0%
50	Malawi	1	0%
51	Kyrgyzstan	1	0%
52	Italy	1	0%
53	Poland	1	0%
54	Saudi Arabia	1	0%
55	Sweden	1	0%
56	Venezuela, Bolivarian Republic of	1	0%