Please answer the given financial question based on the context.
Context: federal realty investment trust schedule iii summary of real estate and accumulated depreciation - continued three years ended december 31 , 2011 reconciliation of accumulated depreciation and amortization ( in thousands ) balance , december 31 , 2008................................................................................................................................... . additions during period 2014depreciation and amortization expense .................................................................... . deductions during period 2014disposition and retirements of property ................................................................. . balance , december 31 , 2009................................................................................................................................... . additions during period 2014depreciation and amortization expense .................................................................... . deductions during period 2014disposition and retirements of property ................................................................. . balance , december 31 , 2010................................................................................................................................... . additions during period 2014depreciation and amortization expense .................................................................... . deductions during period 2014disposition and retirements of property ................................................................. . balance , december 31 , 2011................................................................................................................................... . $ 846258 103698 ( 11869 ) 938087 108261 ( 11144 ) 1035204 114180 ( 21796 ) $ 1127588 .
|balance december 31 2008|$ 846258|
|additions during period 2014depreciation and amortization expense|103698|
|deductions during period 2014disposition and retirements of property|-11869 ( 11869 )|
|balance december 31 2009|938087|
|additions during period 2014depreciation and amortization expense|108261|
|deductions during period 2014disposition and retirements of property|-11144 ( 11144 )|
|balance december 31 2010|1035204|
|additions during period 2014depreciation and amortization expense|114180|
|deductions during period 2014disposition and retirements of property|-21796 ( 21796 )|
|balance december 31 2011|$ 1127588|
federal realty investment trust schedule iii summary of real estate and accumulated depreciation - continued three years ended december 31 , 2011 reconciliation of accumulated depreciation and amortization ( in thousands ) balance , december 31 , 2008................................................................................................................................... . additions during period 2014depreciation and amortization expense .................................................................... . deductions during period 2014disposition and retirements of property ................................................................. . balance , december 31 , 2009................................................................................................................................... . additions during period 2014depreciation and amortization expense .................................................................... . deductions during period 2014disposition and retirements of property ................................................................. . balance , december 31 , 2010................................................................................................................................... . additions during period 2014depreciation and amortization expense .................................................................... . deductions during period 2014disposition and retirements of property ................................................................. . balance , december 31 , 2011................................................................................................................................... . $ 846258 103698 ( 11869 ) 938087 108261 ( 11144 ) 1035204 114180 ( 21796 ) $ 1127588 .
Question: what is the percentual growth of the depreciation and amortization expenses during 2008 and 2009?
Answer:
0.044