Rank	Countries/Territories	Count	Percent
1	United States	495	44.6%
2	China	297	26.8%
3	Germany	99	8.9%
4	Bulgaria	45	4.1%
5	France	32	2.9%
6	Canada	20	1.8%
7	Mexico	20	1.8%
8	Netherlands	18	1.6%
9	Singapore	10	0.9%
10	United Kingdom	8	0.7%
11	Japan	7	0.6%
12	Korea, Republic of	6	0.5%
13	Bangladesh	6	0.5%
14	Russia	6	0.5%
15	Poland	5	0.5%
16	Cyprus	4	0.4%
17	Argentina	3	0.3%
18	Latvia	3	0.3%
19	Austria	3	0.3%
20	Ukraine	3	0.3%
21	Sweden	3	0.3%
22	Spain	2	0.2%
23	Nigeria	2	0.2%
24	Moldova, Republic of	2	0.2%
25	Hong Kong	2	0.2%
26	Malaysia	2	0.2%
27	Australia	2	0.2%
28	Brazil	2	0.2%
29	Romania	1	0.1%
30	Switzerland	1	0.1%