Note how trivial these changes are in the long term. 1890 to 1920 = ~1% real decrease a year. 1920 to peak in 2006: ~1% real increase a year Overall, it tends

Note how trivial these changes are in the long term. 1890 to 1920 = ~1% real decrease a year. 1920 to peak in 2006: ~1% real increase a year Overall, it tends to bounce back to ~110 year over year, implying the long-term real price increase is 0.