Are U.S. banks increasing in size? Use FRED to plot since 1984 on a quarterly basis the

Question:

Are U.S. banks increasing in size? Use FRED to plot since 1984 on a quarterly basis the number of U.S. commercial banks (FRED code: USNUM) and the volume of their deposits (FRED code: DPSACBM027SBOG). Download the data and compute the average deposit size of banks in the first quarters of 1984 and 2013. Do these sizes accurately portray a typical commercial bank?