Sorting dates and display the recent ones VBA - excel

Question

I have the following list, I want to sort the dates and display the recent ones and stock them in ranges 21 and 22 like this:
I have successfully written this code that helped to do the sorting and display the recent dates and stock them on range 21, now I am stack and I dont know how to do to display the end date associated to each recent date.
Loop Until Not ech
' conversion of numbers into text for dico and listbox)
' and the false dates (written in text) to real dates
On Error GoTo PasDate
For i = 2 To UBound(t)
t(i, 1) = CStr(t(i, 1))
If TypeName(t(i, 2)) = "String" Then t(i, 2) = 1 * DateSerial(Right(t(i, 2), 4), Mid(t(i, 2), 4, 2), Left(t(i, 2), 2))
Next i
On Error Resume Next
'Fill dico
Set dico = CreateObject("scripting.dictionary")
dico.CompareMode = TextCompare
For i = 2 To UBound(t)
If t(i, 1) <> "" Then
If Not dico.Exists(t(i, 1)) Then
dico.Add t(i, 1), t(i, 2)
Else
If t(i, 2) > dico(t(i, 1)) Then dico(t(i, 1)) = t(i, 2)
End If
End If
Next i
'Transfert dico to the table r for the list
ReDim r(1 To dico.Count, 1 To 2): i = 0
For Each x In dico.Keys: i = i + 1: r(i, 1) = x: r(i, 2) = dico(x): Next
'fill ranges 20 and 21
.Range("b20:b21").Resize(, Columns.Count - 1).Clear
.Range("b20").Resize(1, UBound(r)).HorizontalAlignment = xlCenter
.Range("b21").Resize(1, UBound(r)).NumberFormat = "dd/mm/yyyy"
.Range("b20").Resize(2, UBound(r)).Borders.LineStyle = xlContinuous
.Range("b20:b21").Resize(2, UBound(r)) = Application.Transpose(r)
End With
'poplate the listbox
For i = 1 To UBound(r): r(i, 1) = Format(r(i, 2), "dd/mm/yyyy"): Next
'For i = 1 To UBound(r): r(i, 1) = Format(r(i, 1), "000"): r(i, 2) = Format(r(i, 2), "dd/mm/yyyy"): Next
With ListBox1
.ColumnCount = 2
.ColumnHeads = False
.ColumnWidths = .Width * 0.7 '& ";" & .Width * (1 - 0.6 + 0.1)
.List = r
End With
Exit Sub
'
PasDate:
Exit Sub
End
End Sub