Rank	Countries/Territories	Count	Percent
1	United States	508	33.5%
2	China	459	30.3%
3	Germany	145	9.6%
4	Canada	81	5.3%
5	Japan	40	2.6%
6	Netherlands	35	2.3%
7	Italy	34	2.2%
8	France	33	2.2%
9	India	25	1.7%
10	Singapore	18	1.2%
11	United Kingdom	17	1.1%
12	Ireland	14	0.9%
13	Austria	14	0.9%
14	Indonesia	11	0.7%
15	Korea, Republic of	10	0.7%
16	Norway	6	0.4%
17	Cyprus	6	0.4%
18	Australia	6	0.4%
19	Hong Kong	5	0.3%
20	Brazil	4	0.3%
21	Russia	4	0.3%
22	Malaysia	3	0.2%
23	Iran, Islamic Republic of	3	0.2%
24	Philippines	3	0.2%
25	Spain	3	0.2%
26	Sweden	2	0.1%
27	Poland	2	0.1%
28	Israel	2	0.1%
29	Denmark	2	0.1%
30	Egypt	2	0.1%
31	Bulgaria	2	0.1%
32	Chile	2	0.1%
33	Belgium	2	0.1%
34	Mexico	2	0.1%
35	Viet Nam	2	0.1%
36	Morocco	1	0.1%
37	Argentina	1	0.1%
38	Czech Republic	1	0.1%
39	Lebanon	1	0.1%
40	Lithuania	1	0.1%
41	Romania	1	0.1%
42	Taiwan	1	0.1%
43	Turkey	1	0.1%