pre_text: entergy arkansas , inc . management's financial discussion and analysis results of operations net income 2008 compared to 2007 net income decreased $ 92.0 million primarily due to higher other operation and maintenance expenses , higher depreciation and amortization expenses , and a higher effective income tax rate , partially offset by higher net revenue . the higher other operation and maintenance expenses resulted primarily from the write-off of approximately $ 70.8 million of costs as a result of the december 2008 arkansas court of appeals decision in entergy arkansas' base rate case . the base rate case is discussed in more detail in note 2 to the financial statements . 2007 compared to 2006 net income decreased $ 34.0 million primarily due to higher other operation and maintenance expenses , higher depreciation and amortization expenses , and a higher effective income tax rate . the decrease was partially offset by higher net revenue . net revenue 2008 compared to 2007 net revenue consists of operating revenues net of : 1 ) fuel , fuel-related expenses , and gas purchased for resale , 2 ) purchased power expenses , and 3 ) other regulatory credits . following is an analysis of the change in net revenue comparing 2008 to 2007 . amount ( in millions ) .
post_text: the rider revenue variance is primarily due to an energy efficiency rider which became effective in november 2007 . the establishment of the rider results in an increase in rider revenue and a corresponding increase in other operation and maintenance expense with no effect on net income . also contributing to the variance was an increase in franchise tax rider revenue as a result of higher retail revenues . the corresponding increase is in taxes other than income taxes , resulting in no effect on net income . the purchased power capacity variance is primarily due to lower reserve equalization expenses . the volume/weather variance is primarily due to the effect of less favorable weather on residential and commercial sales during the billed and unbilled sales periods compared to 2007 and a 2.9% ( 2.9 % ) volume decrease in industrial sales , primarily in the wood industry and the small customer class . billed electricity usage decreased 333 gwh in all sectors . see "critical accounting estimates" below and note 1 to the financial statements for further discussion of the accounting for unbilled revenues. .
table: Amount (In Millions)
table: 2007 net revenue $1,110.6
table: Rider revenue 13.6
table: Purchased power capacity 4.8
table: Volume/weather (14.6)
table: Other 3.5
table: 2008 net revenue $1,117.9
question: Analyse this data from a financial earnings document. what is the growth rate in net revenue in 2008 for entergy arkansas?