Cumulative total by week number

I want to produce a line chart that shows the cumulative count of statuses by week number. I can get it to show the count per week, but I am struggling to change this to show the cumulative amount. This is my line chart at the moment:

This is my table:

 

Can anyone help me to get the line chart to show the running total instead of the count per week? (I am new to Power BI!!)

Thanks!