Rank	Countries/Territories	Count	Percent
1	United States	220	29.3%
2	China	186	24.7%
3	Germany	68	9%
4	Russia	55	7.3%
5	Singapore	28	3.7%
6	France	22	2.9%
7	India	16	2.1%
8	Latvia	15	2%
9	United Kingdom	13	1.7%
10	Israel	12	1.6%
11	Japan	12	1.6%
12	South Africa	12	1.6%
13	Australia	10	1.3%
14	Korea, Republic of	8	1.1%
15	Hong Kong	7	0.9%
16	Canada	6	0.8%
17	Egypt	5	0.7%
18	Saudi Arabia	5	0.7%
19	Poland	4	0.5%
20	Romania	4	0.5%
21	Brazil	4	0.5%
22	Taiwan	4	0.5%
23	Thailand	3	0.4%
24	Netherlands	3	0.4%
25	Czech Republic	3	0.4%
26	Bulgaria	2	0.3%
27	Bahrain	2	0.3%
28	Argentina	2	0.3%
29	Spain	2	0.3%
30	Mexico	2	0.3%
31	Turkey	2	0.3%
32	Ukraine	2	0.3%
33	Venezuela, Bolivarian Republic of	1	0.1%
34	Mongolia	1	0.1%
35	Malaysia	1	0.1%
36	Mali	1	0.1%
37	Italy	1	0.1%
38	Switzerland	1	0.1%
39	Slovakia	1	0.1%
40	Algeria	1	0.1%
41	Belgium	1	0.1%
42	Ecuador	1	0.1%
43	Finland	1	0.1%
44	Indonesia	1	0.1%
45	Ireland	1	0.1%