Rank	Countries/Territories	Count	Percent
1	United States	559	47.5%
2	China	188	16%
3	Germany	124	10.5%
4	Canada	71	6%
5	Netherlands	34	2.9%
6	Japan	27	2.3%
7	Singapore	21	1.8%
8	Russia	16	1.4%
9	United Kingdom	15	1.3%
10	France	14	1.2%
11	Switzerland	13	1.1%
12	Ukraine	12	1%
13	Bulgaria	12	1%
14	Latvia	10	0.8%
15	Korea, Republic of	9	0.8%
16	Australia	6	0.5%
17	Philippines	6	0.5%
18	Nigeria	5	0.4%
19	Taiwan	5	0.4%
20	Thailand	5	0.4%
21	Argentina	4	0.3%
22	Cyprus	4	0.3%
23	Bangladesh	3	0.3%
24	Spain	3	0.3%
25	Italy	2	0.2%
26	Malaysia	2	0.2%
27	Mauritius	2	0.2%
28	Morocco	1	0.1%
29	Hong Kong	1	0.1%
30	Ireland	1	0.1%
31	Belgium	1	0.1%
32	Romania	1	0.1%
33	Turkey	1	0.1%