The households and nonprofit organizations sector consists of individual households (including farm households) and nonprofit organizations such as charitable organizations, private foundations, schools, churches, labor unions, and hospitals. Nonprofits account for about 6 percent of the sector’s total financial assets, according to recent estimates, but they own a larger share of some of the individual financial instruments held by the sector.
The following graph shows this sector's assets since 1952 in trillions of 2007 dollars:
The actual numbers and their sources can be found at this link. The values for 2008 are through the second quarter and all other values are through the end of the year. As can be seen, corporate equities peaked at the end of 1999 and are currently about where they were in 1994. Mutual funds and pension fund reserves likewise peaked in 1999 but are currently above that peak (though just barely for pension fund reserves).
The graph also shows that real estate started rising rapidly in about 1998 and peaked at the end of 2006. In retrospect, it does not seem surprising that this rapid increase proved to be unsustainable. In any case, the correction in real estate will hopefully be closer to that of mutual funds and pension fund reserves than of corporate equities. Being a somewhat more stable asset class, this would seem likely.
The following graph shows the total of all assets (the green line) and the total liabilities against those assets (the red line). It also shows the difference between these two values, net worth (the blue line):
As can be seen, real assets and net worth have fallen sharply in the first two quarters of 2008. In fact, real net worth is currently just slightly above the peak that it reached at the end of 1999.
The prior two graphs show assets and liabilities corrected for inflation. To estimate these values per-capita, one needs to divide them by the current population. The following graph shows the values in the prior graph divided by the year-end U.S. population:
As can be seen, real per-capita net worth is currently below the peak that it reached at the end of 1999. In fact, it's at about the level that it was the year before and the year after this peak.