Private Sub Worksheet_Change(ByVal Target As Range)
For Each Target In Target
If Target.Column > 2 And Target.Column < 6 Then
If Cells(Target.Row, 1) < 2002 Then
Application.EnableEvents = False
If IsNumeric(Target) Then Target = Target / 1.95583
Application.EnableEvents = True
End If
End If
Next Target
End Sub