During the 2011 Fiscal Year, agents with the United States Immigration and Customs Enforcement (ICE) seized over $150 Million from illegal drug trafficking between the United States and Mexico. The agency also made 428 arrests during cash smuggling operations. Back in FY 2005, agents seized $7.3 Million.
The Mexican Government estimates that up to $64 Billion in illegal drug proceeds is transferred between the US and Mexico each year.
In 2012, the United States Justice Department stated that the amount of money could be as high as $85 Billion.
Source: Griselda Nevarez, “Money Laundering Fuels Drug Cartels Affecting Border Security,” Huffington Post, April 6, 2013.