Rank	Countries/Territories	Count	Percent
1	United States	450	40.8%
2	China	235	21.3%
3	Japan	94	8.5%
4	Germany	88	8%
5	Canada	25	2.3%
6	Singapore	24	2.2%
7	Korea, Republic of	20	1.8%
8	Norway	19	1.7%
9	France	17	1.5%
10	Netherlands	16	1.5%
11	Ireland	15	1.4%
12	India	11	1%
13	Mexico	7	0.6%
14	Poland	6	0.5%
15	Brazil	6	0.5%
16	Taiwan	6	0.5%
17	Venezuela, Bolivarian Republic of	5	0.5%
18	United Kingdom	5	0.5%
19	Bulgaria	5	0.5%
20	Cyprus	4	0.4%
21	Algeria	4	0.4%
22	Australia	4	0.4%
23	Belgium	4	0.4%
24	Spain	4	0.4%
25	Slovakia	3	0.3%
26	Morocco	3	0.3%
27	Thailand	3	0.3%
28	Nepal	2	0.2%
29	Portugal	2	0.2%
30	Russia	2	0.2%
31	Peru	2	0.2%
32	Argentina	2	0.2%
33	Egypt	2	0.2%
34	Malaysia	1	0.1%
35	Mauritius	1	0.1%
36	Denmark	1	0.1%
37	South Africa	1	0.1%
38	Switzerland	1	0.1%
39	Mongolia	1	0.1%
40	Italy	1	0.1%
41	Viet Nam	1	0.1%