NA = Not Available

1) During the second quarter 2005, the Company began using trailing 12-month net income and average shareholders' equity to calculate its return on average shareholders' equity, rather than annualized net income through the period; prior interim periods have been restated.

2) Represents Progressive's Personal Lines businesses as a percent of the U.S. personal auto insurance market.

3) Represents U.S. personal auto insurance market net premiums written as reported by A.M. Best Company, Inc.; 2004 is estimated.

4) Represents average annual compounded rate of increase (decrease) and assumes dividend reinvestment.

All share and per share amounts were adjusted for the April 22, 2002, 3-for-1 stock split.

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