Reports with a within time period date criteria?

Reports with a within time period date criteria?

Is there a way to create a report that generates data based on a changing date criteria such as

All Leads that have a Created Date of Within 1 Year?  Right now I can specify Leads Created Up to a date, but then I need to change the report every time I run it.

So for example today is January 1 2014.  If I create the report and say "All Leads created after January 1st 2013" then in February I will need to edit the report and change the date to "All Leads created after February 1st 2013".

Is there a way to just say "All Leads created within one year of Today"?