What is the correct ownership rate? and why do we care about the change from 2006? The data from 1956 to the present makes this whole article kid of boring. ht

What is the correct ownership rate? and why do we care about the change from 2006? The data from 1956 to the present makes this whole article kid of boring. https://www.census.gov/housing/hvs/data/histtabs.html https://www.census.gov/housing/hvs/data/histtabs.html