NEW YORK, July 1 (Reuters) - Bernard Madoff's fraud involved billions of dollars in investor funds that may never be recovered after his massive swindle. Here are key dollar figures in the case:
$170 billion - Amount the U.S. Attorney's Office in Manhattan says flowed through the main Madoff account over decades.
Madoff, who is imprisoned for the rest of his life, consented to a forfeiture order for the same amount -- a symbolic figure because he is not believed to possess anywhere near that much money or assets.
$64.8 billion - Amount the prosecutors, in court papers in March, said was recorded in Bernard L. Madoff Investment Securities LLC's investor accounts as of November 2008, even though no actual trades in securities were made.
$50 billion - Bernard Madoff's sons told authorities he confessed to them on Dec. 10, 2008 that he had been running a $50 billion Ponzi scheme in which early investors were paid with money from new clients.
$13.2 billion - What court-appointed trustee Irving Picard identified was collectively lost out of 1,341 account holders as of Dec. 11, 2008 when the FBI arrested Madoff. The same amount was cited in the official report before Madoff's June 29 sentencing.
Madoff's lawyer Ira Lee Sorkin argued the loss would be less than $13 billion when Picard had recovered assets.
$1.2 billion - Amount of Madoff-linked funds recovered so far by Picard working under the auspices of the Securities Investor Protection Corp (SIPC) to distribute to defrauded investors.
$231 million - Customer payouts committed by SIPC as of July 1 on 543 claims filed by former investors, to be paid out of the brokerage-industry funded group's reserve fund.
$80 million - Amount that Ruth Madoff, the swindler's wife of 45 years, agreed to transfer to the government for the benefit of fraud victims, including the couple's $7 million Manhattan apartment, $11 million house in Palm Beach, Florida and $3 million residence on Long Island, New York.
$2.5 million - Cash that Ruth Madoff is allowed to keep as part of an agreement with prosecutors. (Compiled by Grant McCool and Martha Graybow; editing by Andre Grenon)