working on the site .the company resolved five of the eight pending lawsuits arising from this matter and believes that it has adequate insurance to resolve remaining matters .the company believes that the settlement of these lawsuits will not have a material adverse effect on its consolidated financial statements .during the 2009 third quarter , in connection with an environmental site remediation action under cer- cla , international paper submitted to the epa a feasibility study for this site .the epa has indicated that it intends to select a proposed remedial action alternative from those identified in the study and present this proposal for public comment .since it is not currently possible to determine the final remedial action that will be required , the company has accrued , as of december 31 , 2009 , an estimate of the minimum costs that could be required for this site .when the remediation plan is finalized by the epa , it is possible that the remediation costs could be sig- nificantly higher than amounts currently recorded .exterior siding and roofing litigation international paper has established reserves relating to the settlement , during 1998 and 1999 , of three nationwide class action lawsuits against the com- pany and masonite corp. , a former wholly-owned subsidiary of the company .those settlements relate to ( 1 ) exterior hardboard siding installed during the 1980 2019s and 1990 2019s ( the hardboard claims ) ; ( 2 ) omniwood siding installed during the 1990 2019s ( the omniwood claims ) ; and ( 3 ) woodruf roofing installed during the 1980 2019s and 1990 2019s ( the woodruf claims ) .all hardboard claims were required to be made by january 15 , 2008 , while all omniwood and woodruf claims were required to be made by jan- uary 6 , 2009 .the following table presents an analysis of total reserve activity related to the hardboard , omniwood and woodruf settlements for the years ended december 31 , 2009 , 2008 and 2007 : in millions total .
[['in millions', 'total'], ['balance december 31 2006', '$ 124'], ['payments', '-78 ( 78 )'], ['balance december 31 2007', '46'], ['additional provision', '82'], ['payments', '-87 ( 87 )'], ['balance december 31 2008', '41'], ['payments', '-38 ( 38 )'], ['balance december 31 2009', '$ 3']]
the company believes that the aggregate reserve balance remaining at december 31 , 2009 is adequate to cover the final settlement of remaining claims .summary the company is also involved in various other inquiries , administrative proceedings and litigation relating to contracts , sales of property , intellectual property , environmental and safety matters , tax , personal injury , labor and employment and other matters , some of which allege substantial monetary damages .while any proceeding or litigation has the element of uncertainty , the company believes that the outcome of any of the lawsuits or claims that are pending or threatened , or all of them combined , will not have a material adverse effect on its consolidated financial statements .note 12 variable interest entities and preferred securities of subsidiaries variable interest entities in connection with the 2006 sale of approximately 5.6 million acres of forestlands , international paper received installment notes ( the timber notes ) total- ing approximately $ 4.8 billion .the timber notes , which do not require principal payments prior to their august 2016 maturity , are supported by irrev- ocable letters of credit obtained by the buyers of the forestlands .during the 2006 fourth quarter , interna- tional paper contributed the timber notes to newly formed entities ( the borrower entities ) in exchange for class a and class b interests in these entities .subsequently , international paper contributed its $ 200 million class a interests in the borrower enti- ties , along with approximately $ 400 million of international paper promissory notes , to other newly formed entities ( the investor entities ) in exchange for class a and class b interests in these entities , and simultaneously sold its class a interest in the investor entities to a third party investor .as a result , at december 31 , 2006 , international paper held class b interests in the borrower entities and class b interests in the investor entities valued at approx- imately $ 5.0 billion .international paper has no obligation to make any further capital contributions to these entities and did not provide financial or other support during 2009 , 2008 or 2007 that was not previously contractually required .based on an analysis of these entities under guidance that considers the potential magnitude of the variability in the structure and which party bears a majority of the gains or losses , international paper determined that it is not the primary beneficiary of these entities .

Question: in 2006 what was the ratio of the class a shares and promissory notes international paper contributed in the acquisition of borrower entities interest
Answer: 0.5