How so?
If you are referring to the chart I posted.. yes it's worthless by itself. I thought I explained that it was to show the FRED link; to wit, we do not need to wait for columnists to post FED/government charts and tables -- sometimes with no credit to the source. I asked for the GDP and took all the defaults.
Using constant dollars (2009 dollars) is what the chart needs to be meaningful. Again it was just to illustrate the FRED source. The source may have been in the posted article but if so I didn't see it. The link to the real source of the charts was needed IMO.
The nominal-dollar GDP however is used with the corresponding year's dollar expenditures in my "wall of numbers"; see link in my reply #24. Hover column headers and some columns for descriptions.
I used US Department of Commerce, Bureau of Economic Analysis (BEA) Gross Domestic Product (GDP). The path to the data is listed in the aforementioned link in my reply #24.
Charts are impressive but you cannot get thirty+ columns of data to compare on one chart.