Rank	Countries/Territories	Count	Percent
1	United States	720	35.6%
2	China	491	24.3%
3	Germany	228	11.3%
4	United Kingdom	88	4.3%
5	Iran, Islamic Republic of	52	2.6%
6	Japan	42	2.1%
7	Taiwan	40	2%
8	India	35	1.7%
9	Canada	27	1.3%
10	Netherlands	24	1.2%
11	France	21	1%
12	Ireland	18	0.9%
13	Korea, Republic of	16	0.8%
14	Spain	15	0.7%
15	Saudi Arabia	14	0.7%
16	Hong Kong	14	0.7%
17	Belgium	13	0.6%
18	Singapore	13	0.6%
19	Australia	12	0.6%
20	Czech Republic	12	0.6%
21	Brazil	11	0.5%
22	Italy	9	0.4%
23	Pakistan	9	0.4%
24	Cyprus	8	0.4%
25	Russia	8	0.4%
26	Thailand	8	0.4%
27	Sweden	6	0.3%
28	Mexico	6	0.3%
29	Egypt	6	0.3%
30	Norway	5	0.2%
31	Indonesia	5	0.2%
32	Romania	5	0.2%
33	Turkey	5	0.2%
34	Qatar	4	0.2%
35	Greece	4	0.2%
36	Azerbaijan	3	0.1%
37	Hungary	3	0.1%
38	New Zealand	3	0.1%
39	Morocco	2	0.1%
40	Palestine, State of	2	0.1%
41	Estonia	2	0.1%
42	Denmark	2	0.1%
43	Ukraine	2	0.1%
44	Viet Nam	2	0.1%
45	Uganda	1	0%
46	Serbia	1	0%
47	Switzerland	1	0%
48	Georgia	1	0%
49	Bangladesh	1	0%
50	Algeria	1	0%
51	Colombia	1	0%
52	Philippines	1	0%
53	Macao	1	0%