The Fannie Mae serious delinquency rate peaked in February 2010 at 5.59%.
Freddie Mac reported that the Single-Family serious delinquency rate declined slightly in May to 3.50%, from 3.51% in April. Freddie's rate is only down from 3.53% in May 2011. Freddie's serious delinquency rate peaked in February 2010 at 4.20%.
These are loans that are "three monthly payments or more past due or in foreclosure".
Click on graph for larger imageI don't know why Fannie's delinquency rate is falling faster than for Freddie.
The "normal" serious delinquency rate is under 1%, so there is a long way to go.