Bob Bronson's guest commentary on Capital Market Forecasts published earlier this week included a chart of his population-adjusted version of the Conference Board's Coincident Economic Index (CEI) since 1980. A chart annotation mentioned a companion chart going back to 1959, which triggered a reader request to see that longer-term perspective.
Here is the companion chart.
Adjusting for population growth is a practice that I've increasingly incorporated in my own economic research. See, for example, the following: