How to track leads by created date?

[Anonymous]

We started a new PPC campaign and I want to chart leads by created date.  Now when someone  fills out our form thety are moved in the PPC campagin.  As the campaign progresses the leads are coming in more quickly.  I want to be able to chart the the date the leads joined this campaign over time to see the progress.  What report in Marketo should I use and how do I need to set it up?

[Josh_Hill13]

you should be able to do this with Lead Performance:

Setup: time range, group by Date of Creation
Smart List: people who were in this Program or the Campaign
Report