1000
....\1000-out1.csv
....\1000-out2.csv
....\1000i.csv
20000
.....\20000-out1.csv
.....\20000-out2.csv
.....\20000i.csv
5000
....\5000-out1.csv
....\5000-out2.csv
....\5000i.csv
75000
.....\75000-out1.csv
.....\75000-out2.csv
.....\75000i.csv