The number of points needed to reach the play-offs since 2001 - will Sheffield United make the cut?

Sheffield United are looking to reach the play-offs for the first time since 2009 and can go top with a win over Aston Villa tonight.
Could Sheffield United reach the play-offsCould Sheffield United reach the play-offs
Could Sheffield United reach the play-offs

But what has it taken to reach the play-ffs since the turn of the century?