Please answer the given financial question based on the context.
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 ) .
|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?


Answer: The answer is:9813.66667