2022 base rate increases at entergy texas beginning may 2011 as a result of the settlement of the december 2009 rate case and effective july 2012 as a result of the puct 2019s order in the december 2011 rate case .
see note 2 to the financial statements for further discussion of the rate cases .
these increases were partially offset by formula rate plan decreases at entergy new orleans effective october 2011 and at entergy gulf states louisiana effective september 2012 .
see note 2 to the financial statements for further discussion of the formula rate plan decreases .
the grand gulf recovery variance is primarily due to increased recovery of higher costs resulting from the grand gulf uprate .
the net wholesale revenue variance is primarily due to decreased sales volume to municipal and co-op customers and lower prices .
the purchased power capacity variance is primarily due to price increases for ongoing purchased power capacity and additional capacity purchases .
the volume/weather variance is primarily due to decreased electricity usage , including the effect of milder weather as compared to the prior period on residential and commercial sales .
hurricane isaac , which hit the utility 2019s service area in august 2012 , also contributed to the decrease in electricity usage .
billed electricity usage decreased a total of 1684 gwh , or 2% ( 2 % ) , across all customer classes .
the louisiana act 55 financing savings obligation variance results from a regulatory charge recorded in 2012 because entergy gulf states louisiana and entergy louisiana agreed to share the savings from an irs settlement related to the uncertain tax position regarding the hurricane katrina and hurricane rita louisiana act 55 financing with customers .
see note 3 to the financial statements for additional discussion of the tax settlement .
entergy wholesale commodities following is an analysis of the change in net revenue comparing 2012 to 2011 .
amount ( in millions ) .

Amount (In Millions)
2011 net revenue
$2,045
Nuclear realized price changes
(194)
Nuclear volume
(33)
Other
36
2012 net revenue
$1,854

as shown in the table above , net revenue for entergy wholesale commodities decreased by $ 191 million , or 9% ( 9 % ) , in 2012 compared to 2011 primarily due to lower pricing in its contracts to sell power and lower volume in its nuclear fleet resulting from more unplanned and refueling outage days in 2012 as compared to 2011 which was partially offset by the exercise of resupply options provided for in purchase power agreements whereby entergy wholesale commodities may elect to supply power from another source when the plant is not running .
amounts related to the exercise of resupply options are included in the gwh billed in the table below .
partially offsetting the lower net revenue from the nuclear fleet was higher net revenue from the rhode island state energy center , which was acquired in december 2011 .
entergy corporation and subsidiaries management's financial discussion and analysis .

Question: Analyse this data from a financial earnings document. what is the nuclear volume as a percentage of the decrease in net revenue from 2011 to 2012?
Choices:
-158
0.17277
0.28796
1
-0.17277
Correct choice index: 1