Rank	Countries/Territories	Count	Percent
1	United States	406	50.3%
2	China	185	22.9%
3	Germany	33	4.1%
4	Canada	24	3%
5	Russia	24	3%
6	India	19	2.4%
7	Brazil	19	2.4%
8	Croatia	10	1.2%
9	Singapore	10	1.2%
10	Italy	8	1%
11	Japan	7	0.9%
12	Netherlands	6	0.7%
13	Ireland	6	0.7%
14	Colombia	6	0.7%
15	Mexico	5	0.6%
16	United Kingdom	4	0.5%
17	Spain	3	0.4%
18	Korea, Republic of	3	0.4%
19	Hong Kong	3	0.4%
20	Cyprus	3	0.4%
21	Australia	3	0.4%
22	Argentina	2	0.2%
23	Morocco	2	0.2%
24	Sweden	2	0.2%
25	Taiwan	2	0.2%
26	Viet Nam	2	0.2%
27	Thailand	1	0.1%
28	Ukraine	1	0.1%
29	Switzerland	1	0.1%
30	Philippines	1	0.1%
31	Poland	1	0.1%
32	Slovakia	1	0.1%
33	Bangladesh	1	0.1%
34	Denmark	1	0.1%
35	France	1	0.1%
36	Iran, Islamic Republic of	1	0.1%