1918 isn't very relevant to modern living. And nobody wants to go back to the stagflation of the 1970s. And that scale is logarithmic.

Graph it without the logarithmic scale and draw a curve through the 1982-2018 data and the recent spike will explain why people are complaining about it.

Indeed. Back then food and shelter comprised a much larger % of the average income, and so each percentage point of inflation was considerably more painful than it is now.