Please answer the given financial question based on the context.
Context: entergy louisiana , llc management's financial discussion and analysis 2007 compared to 2006 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 charges ( credits ) . following is an analysis of the change in net revenue comparing 2007 to 2006 . amount ( in millions ) .
||amount ( in millions )|
|2006 net revenue|$ 942.1|
|base revenues|78.4|
|volume/weather|37.5|
|transmission revenue|9.2|
|purchased power capacity|-80.0 ( 80.0 )|
|other|3.9|
|2007 net revenue|$ 991.1|
the base revenues variance is primarily due to increases effective september 2006 for the 2005 formula rate plan filing to recover lpsc-approved incremental deferred and ongoing capacity costs . see "state and local rate regulation" below and note 2 to the financial statements for a discussion of the formula rate plan filing . the volume/weather variance is due to increased electricity usage , including electricity sales during the unbilled service period . billed retail electricity usage increased a total of 666 gwh in all sectors compared to 2006 . see "critical accounting estimates" below and note 1 to the financial statements for further discussion of the accounting for unbilled revenues . the transmission revenue variance is primarily due to higher rates . the purchased power capacity variance is primarily due to higher purchased power capacity charges and the amortization of capacity charges effective september 2006 as a result of the formula rate plan filing in may 2006 . a portion of the purchased power capacity costs is offset in base revenues due to a base rate increase implemented to recover incremental deferred and ongoing purchased power capacity charges , as mentioned above . see "state and local rate regulation" below and note 2 to the financial statements for a discussion of the formula rate plan filing . gross operating revenues , fuel , purchased power expenses , and other regulatory charges ( credits ) gross operating revenues increased primarily due to : an increase of $ 143.1 million in fuel cost recovery revenues due to higher fuel rates and usage ; an increase of $ 78.4 million in base revenues , as discussed above ; and an increase of $ 37.5 million related to volume/weather , as discussed above . fuel and purchased power expenses increased primarily due to an increase in net area demand and an increase in deferred fuel expense as a result of higher fuel rates , as discussed above . other regulatory credits decreased primarily due to the deferral of capacity charges in 2006 in addition to the amortization of these capacity charges in 2007 as a result of the may 2006 formula rate plan filing ( for the 2005 test year ) with the lpsc to recover such costs through base rates effective september 2006 . see note 2 to the financial statements for a discussion of the formula rate plan and storm cost recovery filings with the lpsc. .
Question: what is the percent change in net revenue between 2006 and 2007?
Answer:
0.05201