This June 2007 document on the Stolen Asset Recovery (StAR) Initiative: Challenges, Opportunities, and Action Plan states,
"The theft of public assets from developing countries is a huge and serious problem:
• The cross-border flow of the global proceeds from criminal activities, corruption, and tax evasion is estimated at between $1 trillion and $1.6 trillion per year.
• Corrupt money associated with bribes received by public officials from developing and transition countries is estimated at $20 billion to $40 billion per year—a figure equivalent to 20 to 40 percent of flows of official development assistance (ODA).
… The Stolen Asset Recovery (StAR) initiative is being launched jointly by the UN Office on Drugs and Crime (UNODC) and the World Bank Group (WBG) to respond to this problem."