ICI's weekly "Money Market Mutual Fund Assets" series said last Thursday, "`Total money market fund assets increased by $7.32 billion to $2.58 trillion for the week ended Wednesday, April 23, the Investment Company Institute reported today `_. Among taxable money market funds, treasury funds (including agency and repo) increased by $7.68 billion and prime funds increased by $4.42 billion. Tax-exempt money market funds decreased by $4.78 billion.... `Assets of retail money market funds decreased by $5.60 billion to $907.28 billion `_. Treasury money market fund assets in the retail category decreased by $1.04 billion to $200.45 billion, prime money market fund assets decreased by $1.80 billion to $518.22 billion, and tax-exempt fund assets decreased by $2.76 billion to $188.61 billion..... `Assets of institutional money market funds increased by $12.92 billion to $1.68 trillion. Among institutional funds, treasury money market fund assets increased by $8.72 billion to $702.14 billion, prime money market fund assets increased by $6.21 billion to $903.84 billion, and tax-exempt fund assets decreased by $2.01 billion to $71.05 billion. ICI reports money market fund assets to the Federal Reserve each week. Data for previous weeks reflect revisions due to data adjustments, reclassifications, and changes in the number of funds reporting. Weekly money market assets for the last 20 weeks are available on the ICI website."