Rank	Countries/Territories	Count	Percent
1	United States	609	39.9%
2	China	292	19.1%
3	Japan	179	11.7%
4	Germany	122	8%
5	Italy	61	4%
6	India	35	2.3%
7	France	32	2.1%
8	Canada	26	1.7%
9	Singapore	23	1.5%
10	Netherlands	21	1.4%
11	United Kingdom	21	1.4%
12	Chile	12	0.8%
13	Ireland	9	0.6%
14	Turkey	9	0.6%
15	Korea, Republic of	8	0.5%
16	Spain	7	0.5%
17	Cyprus	7	0.5%
18	Uzbekistan	5	0.3%
19	Australia	4	0.3%
20	Greece	4	0.3%
21	Switzerland	4	0.3%
22	Norway	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	United Arab Emirates	1	0.1%
38	Indonesia	1	0.1%
39	Iran, Islamic Republic of	1	0.1%
40	Bangladesh	1	0.1%