Rank	Countries/Territories	Count	Percent
1	United States	581	39.8%
2	China	280	19.2%
3	Japan	175	12%
4	Germany	117	8%
5	Italy	60	4.1%
6	India	35	2.4%
7	France	24	1.6%
8	Singapore	23	1.6%
9	Netherlands	21	1.4%
10	United Kingdom	21	1.4%
11	Canada	21	1.4%
12	Chile	12	0.8%
13	Turkey	9	0.6%
14	Korea, Republic of	8	0.5%
15	Ireland	8	0.5%
16	Cyprus	7	0.5%
17	Uzbekistan	5	0.3%
18	Australia	4	0.3%
19	Greece	4	0.3%
20	Norway	4	0.3%
21	Spain	4	0.3%
22	Switzerland	4	0.3%
23	Sweden	3	0.2%
24	Ukraine	3	0.2%
25	Portugal	3	0.2%
26	Egypt	3	0.2%
27	Belgium	3	0.2%
28	Israel	2	0.1%
29	Iraq	2	0.1%
30	Taiwan	2	0.1%
31	South Africa	2	0.1%
32	Mexico	2	0.1%
33	Mongolia	1	0.1%
34	Nepal	1	0.1%
35	Malaysia	1	0.1%
36	Philippines	1	0.1%
37	Indonesia	1	0.1%
38	Iran, Islamic Republic of	1	0.1%
39	Bangladesh	1	0.1%