After finding the rate of change for each state, I calculated the average rate of change of all the states for each time period.
2001-2010: 0.214667
2010-2019: 0.153111
After finding the rate of change for each state, I calculated the average rate of change of all the states for each time period.
2001-2010: 0.214667
2010-2019: 0.153111