Have you tried to log the statistics to the workspace instead? To do this, in your scope window, go to 'View' -> 'Configuration Properties'. Then select the 'Logging' tab page. The select 'Log data to workspace' and give an appropriate name to the variable. If you want the time component too in the logged data, you can select 'Structure with time' from the drop-down menu. Then all of the data that you see in the scope gets logged to a variable in your workspace.
Does that solve?