{"pre_text": ["item 1b .", "unresolved staff comments .", "item 2 .", "properties .", "3m 2019s general offices , corporate research laboratories , and certain division laboratories are located in st .", "paul , minnesota .", "in the united states , 3m has nine sales offices in eight states and operates 74 manufacturing facilities in 27 states .", "internationally , 3m has 148 sales offices .", "the company operates 93 manufacturing and converting facilities in 32 countries outside the united states .", "3m owns substantially all of its physical properties .", "3m 2019s physical facilities are highly suitable for the purposes for which they were designed .", "because 3m is a global enterprise characterized by substantial intersegment cooperation , properties are often used by multiple business segments .", "item 3 .", "legal proceedings .", "discussion of legal matters is incorporated by reference from part ii , item 8 , note 13 , 201ccommitments and contingencies , 201d of this document , and should be considered an integral part of part i , item 3 , 201clegal proceedings . 201d item 4 .", "submission of matters to a vote of security holders .", "none in the quarter ended december 31 , 2007 .", "part ii item 5 .", "market for registrant 2019s common equity , related stockholder matters and issuer purchases of equity securities .", "equity compensation plans 2019 information is incorporated by reference from part iii , item 12 , 201csecurity ownership of certain beneficial owners and management and related stockholder matters , 201d of this document , and should be considered an integral part of item 5 .", "at january 31 , 2008 , there were approximately 121302 shareholders of record .", "3m 2019s stock is listed on the new york stock exchange , inc .", "( nyse ) , the chicago stock exchange , inc. , and the swx swiss exchange .", "cash dividends declared and paid totaled $ .48 per share for each quarter of 2007 , and $ .46 per share for each quarter of 2006 .", "stock price comparisons follow : stock price comparisons ( nyse composite transactions ) ( per share amounts ) quarter second quarter quarter fourth quarter year ."], "post_text": ["issuer purchases of equity securities repurchases of common stock are made to support the company 2019s stock-based employee compensation plans and for other corporate purposes .", "on february 13 , 2006 , the board of directors authorized the purchase of $ 2.0 billion of the company 2019s common stock between february 13 , 2006 and february 28 , 2007 .", "in august 2006 , 3m 2019s board of directors authorized the repurchase of an additional $ 1.0 billion in share repurchases , raising the total authorization to $ 3.0 billion for the period from february 13 , 2006 to february 28 , 2007 .", "in february 2007 , 3m 2019s board of directors authorized a two- year share repurchase of up to $ 7.0 billion for the period from february 12 , 2007 to february 28 , 2009. ."], "table": [["( per share amounts )", "first quarter", "second quarter", "third quarter", "fourth quarter", "year"], ["2007 high", "$ 79.88", "$ 89.03", "$ 93.98", "$ 97.00", "$ 97.00"], ["2007 low", "72.90", "75.91", "83.21", "78.98", "72.90"], ["2006 high", "$ 79.83", "$ 88.35", "$ 81.60", "$ 81.95", "$ 88.35"], ["2006 low", "70.30", "75.76", "67.05", "73.00", "67.05"]], "table_ori": [["(Per share amounts)", "First Quarter", "Second Quarter", "Third Quarter", "Fourth Quarter", "Year"], ["2007 High", "$79.88", "$89.03", "$93.98", "$97.00", "$97.00"], ["2007 Low", "72.90", "75.91", "83.21", "78.98", "72.90"], ["2006 High", "$79.83", "$88.35", "$81.60", "$81.95", "$88.35"], ["2006 Low", "70.30", "75.76", "67.05", "73.00", "67.05"]]}

Question: in 2006 what was the total amount authorized by the board of directors authorized for the repurchase of shares in billions
Evidence:
text_12: item 3 .
text_13: legal proceedings .
Program: add(const_2, const_1)
Answer:
str_answer: 3
exe_answer: 3