pre_text: federal realty investment trust schedule iii summary of real estate and accumulated depreciation 2014continued three years ended december 31 , 2010 reconciliation of accumulated depreciation and amortization ( in thousands ) .
post_text: .
table: Balance, December 31, 2007 $756,703
table: Additions during period—depreciation and amortization expense 101,321
table: Deductions during period—disposition and retirements of property (11,766)
table: Balance, December 31, 2008 846,258
table: Additions during period—depreciation and amortization expense 103,698
table: Deductions during period—disposition and retirements of property (11,869)
table: Balance, December 31, 2009 938,087
table: Additions during period—depreciation and amortization expense 108,261
table: Deductions during period—disposition and retirements of property (11,144)
table: Balance, December 31, 2010 $1,035,204
question: Analyse this data from a financial earnings document. considering the years 2009-2010 , what is the increase in the final balance?