3 Figure 3.11 shows the relative price of energy. In this exercise, we derive the series plotted in that figure and examine recent data. First, find data on the producer price index for fuels and related products and power (PPIENG), and plot the growth rate in the index from one year earlier. What is the growth rate of energy prices over the most recent 12 months? Hint: to get the growth rate Go to the "Edit Graph" Next, transform the data to show the growth rate at each date from the previous year. Do this by changing "Units" to "Percent Change." Note, however, that this series represents the inflation rate in energy prices but does not tell you how that inflation rate compares with other producer prices, so you do not know if there is an increase in energy prices relative to overall prices. To remedy that, next go back to the energy price index level (rather than the growth rate). Then find data on over-all producer prices and divide the energy price series by the overall producer price series. Now