what is the average of the deductions during the period of 2003-2006?
Important information:
table_2: balance december 31 2003 the deductions during period 2014disposition and retirements of property of $ 514177 is -1390 ( 1390 ) ;
table_5: balance december 31 2003 the deductions during period 2014disposition and retirements of property of $ 514177 is -15244 ( 15244 ) ;
table_8: balance december 31 2003 the deductions during period 2014disposition and retirements of property of $ 514177 is -12807 ( 12807 ) ;
Reasoning Steps:
Step: add2-1(1390, 15244) = 16634
Step: add2-2(#0, 12807) = 29441
Step: divide2-3(#1, const_3) = 9813.66
Program:
add(1390, 15244), add(#0, 12807), divide(#1, const_3)
Program (Nested):
divide(add(add(1390, 15244), 12807), const_3)

Please answer the following financial question based on the context provided. Make sure to give the answer in raw number, not in percentage and without any units. If the question asks for percentage the value should be less than 1
Context:
federal realty investment trust schedule iii summary of real estate and accumulated depreciation 2014continued three years ended december 31 , 2006 reconciliation of accumulated depreciation and amortization ( in thousands ) .
Table
balance december 31 2003                                             | $ 514177        
additions during period 2014depreciation and amortization expense    | 82551           
deductions during period 2014disposition and retirements of property | -1390 ( 1390 )  
balance december 31 2004                                             | 595338          
additions during period 2014depreciation and amortization expense    | 83656           
deductions during period 2014disposition and retirements of property | -15244 ( 15244 )
balance december 31 2005                                             | 663750          
additions during period 2014depreciation and amortization expense    | 89564           
deductions during period 2014disposition and retirements of property | -12807 ( 12807 )
balance december 31 2006                                             | $ 740507        
.
Question: 
what is the average of the deductions during the period of 2003-2006?
Important information:
table_2: balance december 31 2003 the deductions during period 2014disposition and retirements of property of $ 514177 is -1390 ( 1390 ) ;
table_5: balance december 31 2003 the deductions during period 2014disposition and retirements of property of $ 514177 is -15244 ( 15244 ) ;
table_8: balance december 31 2003 the deductions during period 2014disposition and retirements of property of $ 514177 is -12807 ( 12807 ) ;
Reasoning Steps:
Step: add2-1(1390, 15244) = 16634
Step: add2-2(#0, 12807) = 29441
Step: divide2-3(#1, const_3) = 9813.66
Program:
add(1390, 15244), add(#0, 12807), divide(#1, const_3)
Program (Nested):
divide(add(add(1390, 15244), 12807), const_3)
