Last night's "ICI Reports Money Market Mutual Fund Assets release shows assets declining for the first week in three. It says, "Total money market mutual fund assets decreased by $21.67 billion to $3.286 trillion for the week ended Wednesday, January 13, the Investment Company Institute reported today. Taxable government funds decreased by $9.47 billion, taxable non-government funds decreased by $3.14 billion, and tax-exempt funds decreased by $9.06 billion." ICI's weekly series shows money fund assets declining by $537 billion, or 14.0%, in 2009. ICI adds, "Assets of retail money market funds decreased by $12.58 billion to $1.058 trillion.... Assets of institutional money market funds decreased by $9.09 billion to $2.228 trillion. Among institutional funds, taxable government money market fund assets decreased by $7.05 billion to $872.12 billion, taxable non-government money market fund assets increased by $3.77 billion to $1.196 trillion, and tax-exempt fund assets decreased by $5.82 billion to $160.22 billion."