Rank	Countries/Territories	Count	Percent
1	United States	630	36.5%
2	China	341	19.8%
3	Germany	222	12.9%
4	United Kingdom	83	4.8%
5	Iran, Islamic Republic of	48	2.8%
6	Taiwan	39	2.3%
7	Japan	38	2.2%
8	India	33	1.9%
9	Canada	27	1.6%
10	Netherlands	21	1.2%
11	France	19	1.1%
12	Korea, Republic of	16	0.9%
13	Spain	15	0.9%
14	Saudi Arabia	14	0.8%
15	Hong Kong	14	0.8%
16	Belgium	13	0.8%
17	Czech Republic	12	0.7%
18	Brazil	11	0.6%
19	Singapore	11	0.6%
20	Pakistan	9	0.5%
21	Italy	8	0.5%
22	Russia	8	0.5%
23	Thailand	8	0.5%
24	Cyprus	7	0.4%
25	Australia	7	0.4%
26	Ireland	6	0.3%
27	Mexico	6	0.3%
28	Sweden	6	0.3%
29	Turkey	5	0.3%
30	Norway	5	0.3%
31	Romania	5	0.3%
32	Indonesia	5	0.3%
33	Egypt	5	0.3%
34	Hungary	3	0.2%
35	Azerbaijan	3	0.2%
36	New Zealand	3	0.2%
37	Morocco	2	0.1%
38	Palestine, State of	2	0.1%
39	Estonia	2	0.1%
40	Denmark	2	0.1%
41	Ukraine	2	0.1%
42	Viet Nam	2	0.1%
43	Switzerland	1	0.1%
44	Serbia	1	0.1%
45	Georgia	1	0.1%
46	Algeria	1	0.1%
47	Colombia	1	0.1%
48	Philippines	1	0.1%
49	Macao	1	0.1%