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|View History:  Monthly  Annual Download Data (XLS File)                                                
|View History:  Monthly  Annual                                                                          
|View History:  Monthly  Annual                                                                          
|View History:                                                                                           
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|Percent of Commercial Natural Gas Deliveries in District of Columbia Represented by the Price  (Percent)
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|Percent of Commercial Natural Gas Deliveries in District of Columbia Represented by the Price  (Percent)
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|Year                                                                                                                              | Jan   | Feb   | Mar   | Apr   | May   | Jun   | Jul   | Aug   | Sep   | Oct   | Nov   | Dec  
|--------------------------------------------------------------------------------------------------------------------------------- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | -----
|1989                                                                                                                              | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0
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|1990                                                                                                                              | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0
|1991                                                                                                                              | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 92.4  | 86.7  | 89.4  | 90.6  | 91.1  | 95.7  | 99.5 
|1992                                                                                                                              | 99.6  | 100.0 | 100.0 | 97.4  | 97.6  | 100.0 | 91.4  | 99.5  | 99.0  | 100.0 | 100.0 | 100.0
|1993                                                                                                                              | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 99.8  | 96.8  | 88.4  | 90.1  | 92.6  | 95.9  | 97.1 
|1994                                                                                                                              | 99.8  | 99.8  | 100.0 | 98.8  | 95.7  | 94.4  | 76.6  | 88.5  | 73.3  | 72.0  | 76.4  | 82.0 
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|1995                                                                                                                              | 81.7  | 86.4  | 82.7  | 76.5  | 73.3  | 69.6  | 68.0  | 66.2  | 61.6  | 64.8  | 74.6  | 77.4 
|1996                                                                                                                              | 80.0  | 83.3  | 83.0  | 85.4  | 70.4  | 70.5  | 56.4  | 52.1  | 46.9  | 48.0  | 55.1  | 65.3 
|1997                                                                                                                              | 67.9  | 62.8  | 59.9  | 48.4  | 53.6  | 46.7  | 43.9  | 38.8  | 35.5  | 44.4  | 60.4  | 56.0 
|1998                                                                                                                              | 60.5  | 59.3  | 60.4  | 52.8  | 48.0  | 42.2  | 40.7  | 35.7  | 36.8  | 37.8  | 50.2  | 59.7 
|1999                                                                                                                              | 58.0  | 52.1  | 53.6  | 43.3  | 39.2  | 33.7  | 34.4  | 31.5  | 32.2  | 36.6  | 43.5  | 50.6 
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|2000                                                                                                                              | 49.8  | 50.3  | 38.3  | 35.0  | 30.8  | 28.8  | 29.4  | 22.4  | 20.5  | 23.5  | 27.2  | 32.7 
|2001                                                                                                                              | 28.5  | 24.5  | 25.0  | 20.8  | 20.6  | 18.2  | 16.2  | 23.5  | 16.4  | 18.4  | 19.4  | 22.1 
|2002                                                                                                                              | 24.0  | 23.9  | 22.8  | 21.7  | 21.0  | 20.0  | 17.7  | 18.1  | 17.5  | 24.2  | 28.4  | 27.3 
|2003                                                                                                                              | 30.4  | 38.3  | 42.3  | 29.0  | 28.6  | 26.5  | 18.5  | 18.4  | 22.7  | 25.1  | 29.5  | 30.7 
|2004                                                                                                                              | 26.2  | 25.9  | 26.4  | 22.3  | 19.9  | 18.6  | 18.6  | 21.0  | 19.1  | 20.1  | 22.3  | 24.6 
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|2005                                                                                                                              | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0
|2006                                                                                                                              | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0
|2007                                                                                                                              | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0
|2008                                                                                                                              | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0
|2009                                                                                                                              | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0
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|2010                                                                                                                              | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0
|2011                                                                                                                              | 21.1  | 18.5  | 14.9  | 17.7  | 12.5  | 14.7  | 13.2  | 13.9  | 11.6  | 17.2  | 16.4  | 18.2 
|2012                                                                                                                              | 20.2  | 22.1  | 17.9  | 21.2  | 10.5  | 14.5  | 11.2  | 15.0  | 10.4  | 16.8  | 18.3  | 22.0 
|2013                                                                                                                              | 19.6  | 21.0  | 20.6  | 17.8  | 17.3  | 18.4  | 15.3  | 13.6  | 14.9  | 16.6  | 19.3  | 22.9 
|2014                                                                                                                              | 20.9  | 27.1  | 22.6  | 16.1  | 19.4  | 14.0  | 14.6  | 15.8  | 14.6  | 15.8  | 18.8  | 21.1 
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|2015                                                                                                                              | 22.6  | 25.0  | 22.9  | 22.6  | 19.5  | 26.4  | 15.8  | 16.0  | 15.0  | 15.9  | 17.4  | 21.9 
|2016                                                                                                                              | 22.0  | 21.4  | 22.2  | 18.1  | 16.5  | 15.3  | 14.9  | 14.3  | 13.2  | 15.5  | 16.9  | 26.3 
|2017                                                                                                                              | 23.0  | 24.2  | 23.4  | 17.0  | 19.7  | 17.7  | 16.6  | 16.9  | 16.6  | 16.2  | 19.1  | 21.3 
|2018                                                                                                                              | 28.0  | 22.3  | 20.8  | 20.2  | 18.9  | 21.7  | 14.1  | 17.9  | 18.8  | 20.3  | 22.1  | 23.7 
|2019                                                                                                                              | 21.1  | 23.5  | 23.9  | 21.1  | 17.7  | 16.3  | 15.9  | 16.4  | 14.2  | 17.4  | 21.4  | 23.7 
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|2020                                                                                                                              | 20.9  | 22.0  | 20.6  | 16.4  | 16.4  | 13.4  | 11.7  | 15.0  | 13.1  | 16.7  | 17.9  | 21.5 
|2021                                                                                                                              | 22.9  | 23.9  | 21.3  | 18.1  | 18.9  | 16.7  | 18.8  | 16.2  | 14.8  | 15.7  | 21.6  | 23.6 
|2022                                                                                                                              | 27.2  | 26.9  | 21.5  | 22.7  | 19.4  | 18.5  | 15.4  | 13.5  | 18.1  | 21.7  | 22.1  | 26.1 
|2023                                                                                                                              | 27.6  | 25.3  | 24.7  | 23.2  | 21.8  | 20.1  | 14.1  | 20.7  | 16.2  | 18.9  | 22.6  | 24.4 
|2024                                                                                                                              | 23.5  | 22.5  | 21.3  | 21.8  | 16.4  |       |       |       |       |       |       |      
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|- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
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|Release Date: 7/31/2024                                                                                                          
|Next Release Date: 8/30/2024