Rank	Countries/Territories	Count	Percent
1	United States	338	36.8%
2	China	202	22%
3	Germany	50	5.4%
4	Italy	42	4.6%
5	India	35	3.8%
6	Russia	25	2.7%
7	Latvia	23	2.5%
8	Japan	21	2.3%
9	Singapore	20	2.2%
10	Ireland	17	1.9%
11	Canada	14	1.5%
12	Taiwan	13	1.4%
13	Switzerland	11	1.2%
14	United Kingdom	11	1.2%
15	Brazil	10	1.1%
16	Israel	8	0.9%
17	Sweden	8	0.9%
18	Turkey	7	0.8%
19	Korea, Republic of	5	0.5%
20	Australia	4	0.4%
21	Czech Republic	4	0.4%
22	Portugal	4	0.4%
23	Romania	3	0.3%
24	Thailand	3	0.3%
25	Algeria	3	0.3%
26	Pakistan	3	0.3%
27	Netherlands	2	0.2%
28	Lithuania	2	0.2%
29	Malaysia	2	0.2%
30	Cyprus	2	0.2%
31	Bahrain	2	0.2%
32	Bangladesh	2	0.2%
33	Denmark	2	0.2%
34	Hong Kong	2	0.2%
35	Tunisia	2	0.2%
36	Uganda	2	0.2%
37	Ukraine	1	0.1%
38	Venezuela, Bolivarian Republic of	1	0.1%
39	Viet Nam	1	0.1%
40	Iceland	1	0.1%
41	Indonesia	1	0.1%
42	Iran, Islamic Republic of	1	0.1%
43	Ecuador	1	0.1%
44	France	1	0.1%
45	Bulgaria	1	0.1%
46	Mexico	1	0.1%
47	Jordan	1	0.1%
48	Norway	1	0.1%
49	South Africa	1	0.1%
50	Spain	1	0.1%