Jak zliczać wartośći z trzech tabel?

Kod ponizej porownuje i zlicza table1 z table2. Co zrobic jesli bede mial jszcze jakies np

 Dim table3 As Integer() = {1, 2, 3, 4, 5, 6}

Czyli chce aby table1 bylo porownywane z table2 i table3 a nastepnie zwracalo wynik w rodzaju:
liczba : ilosc

Private Shared Sub Main(args As String())
    Dim table1 As Integer() = {1, 2, 3, 4, 1, 2, _
        3, 4, 1, 2, 3, 4, _
        1, 2, 3, 4}
    Dim table2 As Integer() = {1, 2, 3, 4, 5, 6, _
        7, 8, 9, 9, 9}
    Dim merge = table1.Concat(table2).ToArray()
    Dim dist = merge.Distinct()

    For Each i As var In dist
        Dim iloc = merge.Count(Function(x) x.Equals(i))
        Console.WriteLine(Convert.ToString(i) & " : " & Convert.ToString(iloc))
    Next
    Console.ReadKey()
End Sub