pre_text: entergy new orleans , inc . management's financial discussion and analysis results of operations net income ( loss ) 2004 compared to 2003 net income increased $ 20.2 million primarily due to higher net revenue . 2003 compared to 2002 entergy new orleans had net income of $ 7.9 million in 2003 compared to a net loss in 2002 . the increase was due to higher net revenue and lower interest expense , partially offset by higher other operation and maintenance expenses and depreciation and amortization expenses . net revenue 2004 compared to 2003 net revenue , which is entergy new orleans' measure of gross margin , consists of operating revenues net of : 1 ) fuel , fuel-related , and purchased power expenses and 2 ) other regulatory credits . following is an analysis of the change in net revenue comparing 2004 to 2003. .
post_text: the increase in base rates was effective june 2003 . the rate increase is discussed in note 2 to the domestic utility companies and system energy financial statements . the volume/weather variance is primarily due to increased billed electric usage of 162 gwh in the industrial service sector . the increase was partially offset by milder weather in the residential and commercial sectors . the 2004 deferrals variance is due to the deferral of voluntary severance plan and fossil plant maintenance expenses in accordance with a stipulation approved by the city council in august 2004 . the stipulation allows for the recovery of these costs through amortization of a regulatory asset . the voluntary severance plan and fossil plant maintenance expenses are being amortized over a five-year period that became effective january 2004 and january 2003 , respectively . the formula rate plan is discussed in note 2 to the domestic utility companies and system energy financial statements . the price applied to unbilled electric sales variance is due to an increase in the fuel price applied to unbilled sales. .
table: (In Millions)
table: 2003 net revenue $208.3
table: Base rates 10.6
table: Volume/weather 8.3
table: 2004 deferrals 7.5
table: Price applied to unbilled electric sales 3.7
table: Other 0.6
table: 2004 net revenue $239.0
question: Analyse this data from a financial earnings document. what portion of the net change in net revenue during 2004 occurred due to the volume/weather?