During the Housing Boom peak of 7/2006, it took 42% of median household income to cover mortgage payments on a median-priced house. That percentage bottomed at 26.9% in 1/2013 and peaked at 32% in 11/18. In 2019 and 2020, the Fed lowered rates, dropping the ratio to just 28.6% in 8/2020. As of 7/2021, that ratio is (gulp) 32.1%, its highest level since 11/08, despite super low interest rates.