Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.


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 class='wikitable'><tr><td>1</td><td>balance december 31 2003</td><td>$ 514177</td></tr><tr><td>2</td><td>additions during period 2014depreciation and amortization expense</td><td>82551</td></tr><tr><td>3</td><td>deductions during period 2014disposition and retirements of property</td><td>-1390 ( 1390 )</td></tr><tr><td>4</td><td>balance december 31 2004</td><td>595338</td></tr><tr><td>5</td><td>additions during period 2014depreciation and amortization expense</td><td>83656</td></tr><tr><td>6</td><td>deductions during period 2014disposition and retirements of property</td><td>-15244 ( 15244 )</td></tr><tr><td>7</td><td>balance december 31 2005</td><td>663750</td></tr><tr><td>8</td><td>additions during period 2014depreciation and amortization expense</td><td>89564</td></tr><tr><td>9</td><td>deductions during period 2014disposition and retirements of property</td><td>-12807 ( 12807 )</td></tr><tr><td>10</td><td>balance december 31 2006</td><td>$ 740507</td></tr></table> .
Question: what was the ratio of the additions in 2005 to the ones in 2004?
Answer: 1.01339
Question: and what is the difference between this value and the number one?
Answer: 0.01339
Question: and in the previous year of this period, what was the total of deductions?

1390.0