Output gap - Federal Reserve of Atlanta

The Federal Reserve Bank of Atlanta (see here) has some interesting data on the "output gap" (see below).

About the data, they say:

In this month's BIE survey we went fishing in the same murky waters, but this time we took a more direct approach. We asked our panel to provide a percentage estimate of how far their sales levels are above/below "normal." Here's what we found: On a gross domestic product (GDP)–weighted basis, the panel estimates that current sales are about 7.5 percent below normal. That's more slack than the conventional estimates, like the Congressional Budget Office's (CBO) measure of the GDP gap, which puts the economy about 6 percent under its potential.