Rank	Countries/Territories	Count	Percent
1	United States	527	42.5%
2	China	205	16.5%
3	Germany	146	11.8%
4	India	105	8.5%
5	Russia	25	2%
6	France	21	1.7%
7	Japan	20	1.6%
8		20	1.6%
9	Korea, Republic of	19	1.5%
10	Netherlands	18	1.5%
11	Canada	18	1.5%
12	Mexico	12	1%
13	Singapore	9	0.7%
14	United Kingdom	9	0.7%
15	Thailand	9	0.7%
16	Australia	8	0.6%
17	Taiwan	7	0.6%
18	Switzerland	6	0.5%
19	Colombia	4	0.3%
20	Iran, Islamic Republic of	4	0.3%
21	Cyprus	4	0.3%
22	Israel	4	0.3%
23	Italy	3	0.2%
24	Portugal	3	0.2%
25	Argentina	3	0.2%
26	Angola	2	0.2%
27	Cuba	2	0.2%
28	Egypt	2	0.2%
29	Ireland	2	0.2%
30	Indonesia	2	0.2%
31	Romania	2	0.2%
32	Spain	2	0.2%
33	Poland	2	0.2%
34	Lithuania	2	0.2%
35	Norway	2	0.2%
36	Peru	2	0.2%
37	Ukraine	2	0.2%
38	Viet Nam	1	0.1%
39	Philippines	1	0.1%
40	Morocco	1	0.1%
41	Ecuador	1	0.1%
42	Brazil	1	0.1%
43	Croatia	1	0.1%