Rank	Countries/Territories	Count	Percent
1	United States	473	40.2%
2	China	264	22.4%
3	Japan	97	8.2%
4	Germany	92	7.8%
5	Canada	25	2.1%
6	Singapore	25	2.1%
7	Korea, Republic of	23	2%
8	Norway	19	1.6%
9	France	19	1.6%
10	Netherlands	17	1.4%
11	Ireland	15	1.3%
12	India	11	0.9%
13	Mexico	7	0.6%
14	United Kingdom	7	0.6%
15	Taiwan	6	0.5%
16	Poland	6	0.5%
17	Brazil	6	0.5%
18	Bulgaria	5	0.4%
19	Venezuela, Bolivarian Republic of	5	0.4%
20	Turkey	4	0.3%
21	Spain	4	0.3%
22	Algeria	4	0.3%
23	Australia	4	0.3%
24	Belgium	4	0.3%
25	Cyprus	4	0.3%
26	Slovakia	3	0.3%
27	Morocco	3	0.3%
28	Thailand	3	0.3%
29	Nepal	2	0.2%
30	Portugal	2	0.2%
31	Russia	2	0.2%
32	Peru	2	0.2%
33	Egypt	2	0.2%
34	Argentina	2	0.2%
35	Chile	1	0.1%
36	Denmark	1	0.1%
37	Italy	1	0.1%
38	Hong Kong	1	0.1%
39	South Africa	1	0.1%
40	Mongolia	1	0.1%
41	Malaysia	1	0.1%
42	Mauritius	1	0.1%
43	Switzerland	1	0.1%
44	Viet Nam	1	0.1%