federal realty investment trust schedule iii summary of real estate and accumulated depreciation 2014continued three years ended december 31, 2005 reconciliation of accumulated depreciation and amortization.

balance december 31 2002 | $450697000
additions during period 2014depreciation and amortization expense | 68125000
deductions during period 2014disposition and retirements of property | -4645000 (4645000)
balance december 31 2003 | 514177000
additions during period 2014depreciation and amortization expense | 82551000
deductions during period 2014disposition and retirements of property | -1390000 (1390000)
balance december 31 2004 | 595338000
additions during period 2014depreciation and amortization expense | 83656000
deductions during period 2014disposition and retirements of property | -15244000 (15244000)
balance december 31 2005 | $663750000

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what is the value of accumulated depreciation and amortization at the end of 2005? 663750000.0

what is the balance at the end of 2004?