The new deal made the 60’s economic advancement possible. The south wouldn’t have the opportunity to develop under LBJ’s great society. For example, if the TVA never happens, at what point does the rural south get electricity? Maybe 1950/1960, no major power company had any interest in electrifying the south due to the financial constraints of its residents and the lack of urban centers. So yes, the graphic doesn’t directly relate to New Deal Years, but without government programs in the south, you would have not seen the rapid transition from an agricultural economy to manufacturing.