Hi Luke ,
Please use twbx file , but if you have data for lets suppose 5 years ,you can expand it on daily basis .And then add and show filters on years, quarter ,month and day ,then you can compare your data year wise , quarter wise or month wise as per your requirement .
Row\Column Shelf :: To create filters right click on year and select show filter and so on for Quarter and month .
Hope this will work .
Create two calculated fields based on your date selection parameter. The first calculated field will show you the data from that chosen date range and then a second will calculate the date as -365 days or take the dateparts and go back to the same day and month range with a year that is -1. Do not drag these two calculated fields to the filter shelf but refer to them in another calculated field that you will use as a measure to display the data.