Looks like a Measure of the Economy's Performance

Yesterday I concluded

So we see that when debt is relatively low, economic growth (or in this case, Fixed Private Investment) is relatively high. But when debt is relatively high, investment doesn't run higher, and sometimes it runs low.

So the next thing I want to see is Fixed Private Investment relative to Total Debt:

Graph #1: Fixed Private Investment relative to Total Debt

It looks like a measure of the economy's performance for the last 60 years.

It is.