Creating a Rolling 12 or 24 month Chart

Hi All

Hope everyone is good.

I am really struggling with this. I have a report that is used to measures the performance of 4 teams in 5 different areas on a monthly basis.

I want to create a chart for each area but to only should the last 12 or 24 months of data.

I have attached a sample sheet. Can anyone help. I am using Excel 2010

Thanks in advance.