Pipeline type report

Content

Does any one have a kind of pipeline report that shows the average amount of days a candidate spends in kind of custom "windows" as I call them?

For example, how many average days is it between First Approval and Posted? Then between Posted and the hired candidate applies? Then from Applied to 1st interview? Etc. I'm having issues getting the average days to come out right when there are multiple hires on a requisition.

Has any had any luck doing something like this?