Click on graph for larger image.This graph shows Residential Investment as a percent of GDP since 1960. The median is 4.5% of GDP. Currently RI is still above 5% of GDP.
RI peaked at 6.3% in the second half of 2005.
If this housing bust is similar to previous busts, RI as a percent of GDP will bottom in the 3.5% to 4.0% range.
More on investment soon.