Statement:
the highest number of discs released for any of the volumes is only 1
Input Table: none
volume
discs
episodes
region_1
region_2
region_4
1
1
4
2006-01-31
2007-02-19
2007-03-15
2
1
4
2006-03-28
2007-06-04
2007-07-05
3
1
4
2006-05-30
2007-09-03
2008-03-13
4
1
4
2006-07-18
2008-02-18
2008-06-19
5
1
4
2006-09-19
2008-05-26
2009-03-05