hola no pude aguantar jaja y me puse con un listview por si te sirve de ayuda
ListView1.ListItems.Add(, , "a").SubItems(1) = "1"
ListView1.ListItems.Add(, , "b").SubItems(1) = "2"
ListView1.ListItems.Add(, , "c").SubItems(1) = "3"
ListView1.ListItems.Add(, , "d").SubItems(1) = "4"
ListView1.ListItems.Add(, , "a").SubItems(1) = "1"
ListView1.ListItems.Add(, , "b").SubItems(1) = "2"
ListView1.ListItems.Add(, , "c").SubItems(1) = "3"
ListView1.ListItems.Add(, , "d").SubItems(1) = "4"
Dim numeros(1 To 36)
Dim valor As Integer
For i = 1 To ListView1.ListItems.Count - 1
valor = ListView1.ListItems.Item(i).SubItems(1)
If valor > 0 And valor <= 36 Then
numeros(valor) = numeros(valor) + 1
End If
Next
MsgBox numeros(1)