Lead form Page

Hi There!

I need number of days between lead stages and display in the section list view of Lead form page where time(days) between lead stages is displayed.

For example:

Registration -> Qualification 5 days

Qualification -> Sale in Progress 8 days

Sale in Progress -> Opportunity in Progress 21 days

Opportunity in Progress -> Won/Lost/etc  54 days

Is it possible to calculate number of days between lead stages and display in the section list view?