Rank	Countries/Territories	Count	Percent
1	United States	388	42.1%
2	China	294	31.9%
3	Germany	72	7.8%
4	Canada	27	2.9%
5	France	17	1.8%
6	United Kingdom	14	1.5%
7	Romania	13	1.4%
8	Croatia	13	1.4%
9	Netherlands	10	1.1%
10	Singapore	9	1%
11	Korea, Republic of	9	1%
12	Ukraine	7	0.8%
13	Viet Nam	5	0.5%
14	Italy	5	0.5%
15	Thailand	4	0.4%
16	Australia	4	0.4%
17	Czech Republic	4	0.4%
18	Cyprus	3	0.3%
19	Switzerland	3	0.3%
20	Japan	3	0.3%
21	Russia	2	0.2%
22	Argentina	2	0.2%
23	Bangladesh	2	0.2%
24	Denmark	2	0.2%
25	Egypt	1	0.1%
26	Georgia	1	0.1%
27	India	1	0.1%
28	Iran, Islamic Republic of	1	0.1%
29	Ireland	1	0.1%
30	Brazil	1	0.1%
31	Bulgaria	1	0.1%
32	Spain	1	0.1%
33	Philippines	1	0.1%