I have posted here on growing indebtedness and financialization. The table below comes from Duménil and Lévy's recent book The Crisis of Neoliberalism.
As they note (p. 104) in regard to the table, one can see: "the rise of the debts of all US sectors as a percentage of GDP. This growth remained moderate after World War II, from 126 percent in 1952 to 155 percent in 1980, and exploded during the neoliberal decades, up to 353 percent in 2008." Yet, between 1952 and 1980 public sector debt fell from 68 to 37, and the moderate increase was all in private debt. Further, note the explosion of the financial sector debt increasing six-fold in the three decades after 1980. Over the whole period, the financial sector debt as a share of GDP grew by almost 40 times. In their words again: "the indebtedness of the financial sector is a new and spectacular phenomenon, typical of the neoliberal decades."