That returns this

Period 1
Period 1
Period 1
Period 1
Period 1
Period 1
Period 1
Period 2
Period 2
Period 2
Period 2
Period 2
Period 2
Period 2
Period 3
Period 3
Period 3
Period 3
Period 3
Period 3
Period 3
Period 4
Period 4
Period 4
Period 4
Period 4
Period 4
Period 4
Period 5
Period 5
Period 5
Period 5
Period 5
Period 5
Period 5
Period 6
Period 6
Period 6
Period 6
Period 6
Period 6
Period 6
Period 7
Period 7
Period 7
Period 7
Period 7
Period 7
Period 7