Now put US national debt chart in log scale...and you'll see that its an exponential increase as well.  

Same with that image of USDollar purchasing power.  If you don't put that in LogScale the last 50yrs look fairly benign.  

https://m.primal.net/HWcJ.png
https://m.primal.net/HWcK.png
https://m.primal.net/HWcL.png
https://m.primal.net/HWcM.jpg