Hi,
you then need to create PHP scripts that will first retrieve the data and then some other code that will display it, ideally using also graphs etc. That´s exactly what my template does, I created it for that very reason - I did not want to rely on WU and I also have scripts built-in the template that will import history data from WU so that one does not have to start from scratch.
You will need PHP, some charting library, Javascript etc. depends how familiar you are with these.