Annual Change in Monetary Base Since 1918

After yesterday's post forecasting that we could see a 40% y/y increase in the monetary base in 2013, I thought it might be good to look at a long term chart of the monetary base to put that number into context.  Below is a chart showing the rolling y/y increase in the monetary base since 1918.  The only other time there has been such a steep increase in the US base was during the depression/WWII era during which there were three different periods of 20% annual growth in the base.