Finance committee  It really depends on the size of the account and the risk as the agency measures it.

Finance committee  In 2004-05, the allowance for doubtful accounts was $4.7 billion, of the $18 billion.

Finance committee  In 2004-2005, in fact, the agency received $11 billion in new debt, but it also resolved.... It collected $9 billion in cash and it wrote off $2 billion. So in 2004-2005, there was actually a net increase of zero. But in the previous years it was always an increase of $1 billion or $2 billion each year.

Finance committee  In 2004-2005 it was a writeoff of $2 billion, which was actually about double the average for all prior years.