Money laundering is the process of concealing sources of money. Money evidently has gained through crime is "dirty" money, and money that has been "laundered" to appear as if it came from a legitimate source is "clean" money. Money can be laundered by many methods, which vary in complexity and sophistication. Different countries may or may not treat tax evasion or payments in breach of international sanctions as money laundering. Some jurisdictions differentiate these for definition purposes, and others do not. Some jurisdictions define money laundering as obfuscating sources of money, either intentionally or by merely using financial systems or services that do not identify or track sources or destinations. Many regulatory and governmental authorities estimate each year for the amount of money laundered, either worldwide or within their national economy. In 1996, the International Monetary Fund estimated that two to five percent of the worldwide global economy involved launderedmoney.