Task: Table-QA (source dataset: FinQA)

Task: 
You are given a table containing structured data and a natural language question referring to the table. Your goal is to analyze the table and provide an accurate and concise answer based on the given data.

Instructions:
1. Understand the Table: Examine the structure, headers, and data in the table. Identify relevant columns and rows related to the question.
2. Interpret the Question: Determine whether the question requires direct retrieval, aggregation, comparison, sorting, filtering, or inference.
3. Extract the Answer: Use logical reasoning and numerical operations (if necessary) to derive the correct response from the table.
4. Format the Answer: No explanation, return the answer in a structured JSON format: {"answer": <answer>}. If the question cannot be answered due to missing or ambiguous data, return a JSON response with {"answer": null}.

Table:
| ( in millions )                                                                 | 2006           | 2005           | 2004       |
|:--------------------------------------------------------------------------------|:---------------|:---------------|:-----------|
| foreign currency translation                                                    | $ 197          | $ 73           | $ 213      |
| unrealized gain ( loss ) on hedges of net investments in non-u.s . subsidiaries | -7 ( 7 )       | 11             | -26 ( 26 ) |
| unrealized loss on available-for-sale securities                                | -227 ( 227 )   | -285 ( 285 )   | -56 ( 56 ) |
| minimum pension liability                                                       | -186 ( 186 )   | -26 ( 26 )     | -26 ( 26 ) |
| unrealized loss on cash flow hedges                                             | -1 ( 1 )       | -4 ( 4 )       | -13 ( 13 ) |
| total                                                                           | $ -224 ( 224 ) | $ -231 ( 231 ) | $ 92       |

Question:
what is the growth rate in the average price of repurchased shares from 2005 to 2006?


pre_text: defined by fin 46 ( r ) , as a result of the issuance of subordinated notes by the conduits to third-party investors , and we do not record these conduits in our consolidated financial statements .
at december 31 , 2006 and 2005 , total assets in unconsolidated conduits were $ 25.25 billion and $ 17.90 billion , respectively .
our off-balance sheet commitments to these conduits are disclosed in note 10 .
collateralized debt obligations : we manage a series of collateralized debt obligations , or 201ccdos . 201d a cdo is a managed investment vehicle which purchases a portfolio of diversified highly-rated assets .
a cdo funds purchases through the issuance of several tranches of debt and equity , the repayment and return of which are linked to the performance of the assets in the cdo .
typically , our involvement is as collateral manager .
we may also invest in a small percentage of the debt issued .
these entities typically meet the definition of a variable interest entity as defined by fin 46 ( r ) .
we are not the primary beneficiary of these cdos , as defined by fin 46 ( r ) , and do not record these cdos in our consolidated financial statements .
at december 31 , 2006 and 2005 , total assets in these cdos were $ 3.48 billion and $ 2.73 billion , respectively .
during 2005 , we acquired and transferred $ 60 million of investment securities from our available-for- sale portfolio into a cdo .
this transfer , which was executed at fair market value in exchange for cash , was treated as a sale .
we did not acquire or transfer any investment securities to a cdo during 2006 .
note 12 .
shareholders 2019 equity treasury stock : during the first quarter of 2006 , we purchased 3 million shares of our common stock under a program authorized by our board of directors , or 201cboard , 201d in 2005 .
on march 16 , 2006 , the board authorized a new program for the purchase of up to 15 million shares of our common stock for general corporate purposes , including mitigating the dilutive impact of shares issued under employee benefit programs , and terminated the 2005 program .
under this new program , we purchased 2.8 million shares of our common stock during 2006 , and as of december 31 , 2006 , 12.2 million shares were available for purchase .
we utilize third-party broker-dealers to acquire common shares on the open market in the execution of our stock purchase program .
in addition , shares may be acquired for other deferred compensation plans , held by an external trustee , that are not part of the common stock purchase program .
as of december 31 , 2006 , on a cumulative basis , approximately 395000 shares have been purchased and are held in trust .
these shares are recorded as treasury stock in our consolidated statement of condition .
during 2006 , 2005 and 2004 , we purchased and recorded as treasury stock a total of 5.8 million shares , 13.1 million shares and 4.1 million shares , respectively , at an average historical cost per share of $ 63 , $ 51 and $ 43 , respectively .
accumulated other comprehensive ( loss ) income: .
post_text: for the year ended december 31 , 2006 , we realized net gains of $ 15 million on sales of available-for- sale securities .
unrealized losses of $ 7 million were included in other comprehensive income at december 31 , 2005 , net of deferred taxes of $ 4 million , related to these sales .
seq 86 copyarea : 38 .
x 54 .
trimsize : 8.25 x 10.75 typeset state street corporation serverprocess c:\\fc\\delivery_1024177\\2771-1-dm_p.pdf chksum : 0 cycle 1merrill corporation 07-2771-1 thu mar 01 17:10:46 2007 ( v 2.247w--stp1pae18 ) .
label: 0.23529000000000003
qa: answer: 23.5%
ann_text_rows: 21
steps: op: minus2-1
arg1: 63
arg2: 51
res: 12
op: divide2-2
arg1: #0
arg2: 51
res: 23.5%
program: subtract(63, 51), divide(#0, 51)
gold_inds: text_21: during 2006 , 2005 and 2004 , we purchased and recorded as treasury stock a total of 5.8 million shares , 13.1 million shares and 4.1 million shares , respectively , at an average historical cost per share of $ 63 , $ 51 and $ 43 , respectively .
exe_ans: 0.23529000000000003
tfidftopn: text_16: under this new program , we purchased 2.8 million shares of our common stock during 2006 , and as of december 31 , 2006 , 12.2 million shares were available for purchase .
text_15: on march 16 , 2006 , the board authorized a new program for the purchase of up to 15 million shares of our common stock for general corporate purposes , including mitigating the dilutive impact of shares issued under employee benefit programs , and terminated the 2005 program .
program_re: divide(subtract(63, 51), 51)
model_input: text_21
during 2006 , 2005 and 2004 , we purchased and recorded as treasury stock a total of 5.8 million shares , 13.1 million shares and 4.1 million shares , respectively , at an average historical cost per share of $ 63 , $ 51 and $ 43 , respectively .
text_22
accumulated other comprehensive ( loss ) income: .
table_6
( in millions ) the total of 2006 is $ -224 ( 224 ) ; the total of 2005 is $ -231 ( 231 ) ; the total of 2004 is $ 92 ;