Track down the changes in four types of interest rate (discount, federal funds, prime, and mortgage) for the years 2000-2018.

1. Construct a table and draw a graph containing the four types of interest rate (discount rate, federal funds rate, prime rate, and new home mortgage rate).
2. On both table and graph, mark the highest and lowest rates of each and the years when they occur.
3. Comment, if you can, on those changes.
4. Cite your references properly and attach a photocopy of the original table of data you use.