Rank	Countries/Territories	Count	Percent
1	United States	471	34.7%
2	China	420	30.9%
3	Germany	122	9%
4	Italy	86	6.3%
5		32	2.4%
6	Australia	30	2.2%
7	Russia	25	1.8%
8	Korea, Republic of	18	1.3%
9	Netherlands	17	1.3%
10	Canada	17	1.3%
11	France	17	1.3%
12	India	16	1.2%
13	Ireland	11	0.8%
14	Japan	10	0.7%
15	Switzerland	9	0.7%
16	Norway	8	0.6%
17	United Kingdom	8	0.6%
18	Egypt	6	0.4%
19	Hong Kong	4	0.3%
20	Taiwan	4	0.3%
21	Greece	3	0.2%
22	Colombia	3	0.2%
23	Cyprus	3	0.2%
24	Bangladesh	2	0.1%
25	Argentina	2	0.1%
26	Finland	2	0.1%
27	Thailand	2	0.1%
28	Saudi Arabia	2	0.1%
29	Romania	2	0.1%
30	Singapore	1	0.1%
31	Spain	1	0.1%
32	Ukraine	1	0.1%
33	Iran, Islamic Republic of	1	0.1%
34	Belgium	1	0.1%
35	Denmark	1	0.1%
36	Viet Nam	1	0.1%