Rank	Countries/Territories	Count	Percent
1	United States	301	37.6%
2	China	238	29.8%
3	Germany	82	10.2%
4		34	4.2%
5	Singapore	25	3.1%
6	Netherlands	20	2.5%
7	Japan	20	2.5%
8	Bulgaria	9	1.1%
9	Poland	8	1%
10	France	8	1%
11	Cyprus	6	0.8%
12	Australia	6	0.8%
13	Canada	4	0.5%
14	United Kingdom	4	0.5%
15	Ukraine	3	0.4%
16	Bangladesh	3	0.4%
17	Korea, Republic of	3	0.4%
18	Macao	3	0.4%
19	Mongolia	2	0.2%
20	Iran, Islamic Republic of	2	0.2%
21	Latvia	2	0.2%
22	Lithuania	2	0.2%
23	Argentina	2	0.2%
24	Russia	2	0.2%
25	Senegal	2	0.2%
26	Spain	2	0.2%
27	Switzerland	2	0.2%
28	Turkey	2	0.2%
29	Romania	1	0.1%
30	Nigeria	1	0.1%
31	Italy	1	0.1%