Rank	Countries/Territories	Count	Percent
1	United States	299	25.9%
2	China	255	22.1%
3	Germany	155	13.4%
4	United Kingdom	71	6.2%
5	Taiwan	39	3.4%
6	Japan	38	3.3%
7	Iran, Islamic Republic of	32	2.8%
8	India	28	2.4%
9	Canada	22	1.9%
10	Netherlands	17	1.5%
11	Saudi Arabia	14	1.2%
12	France	14	1.2%
13	Spain	14	1.2%
14	Belgium	13	1.1%
15	Korea, Republic of	13	1.1%
16	Czech Republic	12	1%
17	Hong Kong	11	1%
18	Singapore	9	0.8%
19	Thailand	8	0.7%
20	Brazil	8	0.7%
21	Ireland	6	0.5%
22	Italy	6	0.5%
23	Cyprus	6	0.5%
24	Russia	6	0.5%
25	Romania	5	0.4%
26	Norway	5	0.4%
27	Indonesia	5	0.4%
28	Australia	4	0.3%
29	Sweden	4	0.3%
30	Turkey	3	0.3%
31	Azerbaijan	3	0.3%
32	Hungary	3	0.3%
33	Egypt	3	0.3%
34	New Zealand	3	0.3%
35	Pakistan	2	0.2%
36	Mexico	2	0.2%
37	Morocco	2	0.2%
38	Estonia	2	0.2%
39	Denmark	2	0.2%
40	Ukraine	2	0.2%
41	Viet Nam	2	0.2%
42	Switzerland	1	0.1%
43	Georgia	1	0.1%
44	Algeria	1	0.1%
45	Colombia	1	0.1%
46	Philippines	1	0.1%
47	Serbia	1	0.1%