I managed to find that - thanks!
A few other interesting angles: Household Debt Service Payments as a Percent of Disposable Personal Income[0] (10.3%, near 40-year lows), Consumer Debt Service Payments as a Percent of Disposable Personal Income[1] (5.9%, near 40-year average), Personal Saving Rate[2] (3.2%, near 50-year lows).
[0] https://fred.stlouisfed.org/series/TDSP