Rank	Countries/Territories	Count	Percent
1	United States	325	35%
2	China	209	22.5%
3	Germany	155	16.7%
4	Netherlands	39	4.2%
5	Bulgaria	34	3.7%
6	Australia	24	2.6%
7	France	23	2.5%
8	Japan	12	1.3%
9	Ukraine	12	1.3%
10	Singapore	10	1.1%
11	Canada	8	0.9%
12	Korea, Republic of	6	0.6%
13	India	6	0.6%
14	South Africa	5	0.5%
15	Thailand	5	0.5%
16	Bangladesh	5	0.5%
17	Latvia	4	0.4%
18	United Kingdom	4	0.4%
19	Russia	4	0.4%
20	Pakistan	4	0.4%
21	Philippines	4	0.4%
22	Taiwan	4	0.4%
23	Iran, Islamic Republic of	3	0.3%
24	Turkey	3	0.3%
25	Switzerland	3	0.3%
26	Cyprus	3	0.3%
27	Costa Rica	2	0.2%
28	Georgia	2	0.2%
29	Hong Kong	2	0.2%
30	Morocco	2	0.2%
31	Spain	1	0.1%
32	Senegal	1	0.1%
33	Poland	1	0.1%
34	Romania	1	0.1%
35	Mauritius	1	0.1%
36	Argentina	1	0.1%