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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 Indiana Represented by the Price  (Percent)
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|Percent of Commercial Natural Gas Deliveries in Indiana Represented by the Price  (Percent)
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|Year                                                                                                                              | Jan  | Feb  | Mar  | Apr  | May   | Jun  | Jul  | Aug  | Sep  | Oct  | Nov  | Dec 
|--------------------------------------------------------------------------------------------------------------------------------- | ---- | ---- | ---- | ---- | ----- | ---- | ---- | ---- | ---- | ---- | ---- | ----
|1989                                                                                                                              | 94.1 | 93.9 | 94.3 | 92.6 | 92.6  | 97.2 | 96.7 | 96.8 | 89.1 | 91.9 | 97.7 | 98.9
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|1990                                                                                                                              | 99.2 | 98.5 | 93.4 | 90.1 | 92.1  | 90.6 | 92.2 | 89.7 | 88.4 | 91.8 | 98.4 | 98.6
|1991                                                                                                                              | 94.2 | 93.3 | 93.2 | 93.2 | 92.6  | 89.2 | 89.9 | 89.6 | 92.6 | 98.5 | 97.9 | 95.4
|1992                                                                                                                              | 93.6 | 92.4 | 98.6 | 99.1 | 99.7  | 99.9 | 92.8 | 99.6 | 91.9 | 99.8 | 99.9 | 98.0
|1993                                                                                                                              | 94.5 | 94.1 | 99.6 | 99.5 | 100.0 | 91.9 | 90.4 | 91.1 | 92.9 | 90.7 | 92.2 | 96.1
|1994                                                                                                                              | 94.1 | 97.5 | 93.7 | 91.5 | 88.4  | 85.6 | 84.6 | 85.9 | 84.3 | 86.7 | 91.3 | 91.4
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|1995                                                                                                                              | 89.7 | 89.9 | 89.5 | 87.0 | 83.4  | 76.1 | 73.5 | 72.7 | 77.9 | 80.9 | 90.7 | 93.4
|1996                                                                                                                              | 98.1 | 98.6 | 97.9 | 97.4 | 93.7  | 88.9 | 91.6 | 86.8 | 86.8 | 91.5 | 96.1 | 97.4
|1997                                                                                                                              | 97.1 | 96.7 | 93.4 | 91.1 | 58.0  | 59.4 | 85.4 | 86.8 | 87.2 | 93.9 | 96.0 | 94.0
|1998                                                                                                                              | 85.1 | 83.9 | 88.3 | 78.9 | 75.8  | 69.8 | 59.1 | 70.2 | 57.3 | 69.0 | 74.5 | 82.6
|1999                                                                                                                              | 83.5 | 77.9 | 85.2 | 78.3 | 76.9  | 74.3 | 57.1 | 66.9 | 67.8 | 67.8 | 76.9 | 79.3
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|2000                                                                                                                              | 78.1 | 81.0 | 79.2 | 79.3 | 72.0  | 65.2 | 67.1 | 66.6 | 70.3 | 73.0 | 79.3 | 83.0
|2001                                                                                                                              | 84.2 | 82.6 | 77.0 | 78.1 | 66.2  | 69.1 | 58.9 | 64.6 | 64.1 | 69.0 | 72.6 | 80.9
|2002                                                                                                                              | 78.5 | 77.8 | 80.3 | 77.5 | 82.9  | 70.5 | 64.2 | 67.3 | 66.1 | 74.5 | 78.9 | 85.6
|2003                                                                                                                              | 85.2 | 82.8 | 82.4 | 76.2 | 73.5  | 69.6 | 66.6 | 74.9 | 70.0 | 73.8 | 76.7 | 82.0
|2004                                                                                                                              | 82.9 | 83.2 | 78.3 | 75.6 | 71.2  | 68.7 | 68.2 | 66.4 | 66.7 | 74.2 | 76.7 | 79.8
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|2005                                                                                                                              | 84.0 | 85.0 | 84.3 | 79.4 | 75.6  | 73.2 | 75.5 | 73.3 | 77.0 | 80.0 | 81.6 | 83.8
|2006                                                                                                                              | 80.0 | 81.7 | 81.1 | 74.9 | 75.6  | 70.8 | 75.3 | 75.1 | 77.1 | 83.2 | 79.2 | 80.4
|2007                                                                                                                              | 80.5 | 81.7 | 77.6 | 79.3 | 64.4  | 73.2 | 72.0 | 76.4 | 74.1 | 77.0 | 73.0 | 80.1
|2008                                                                                                                              | 83.6 | 77.4 | 76.4 | 74.2 | 73.6  | 68.4 | 71.0 | 70.2 | 78.6 | 77.3 | 78.4 | 79.1
|2009                                                                                                                              | 77.4 | 77.0 | 73.4 | 69.7 | 66.0  | 67.7 | 67.8 | 67.7 | 67.9 | 74.1 | 70.6 | 76.2
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|2010                                                                                                                              | 76.1 | 74.3 | 71.1 | 61.9 | 63.1  | 59.4 | 62.4 | 64.0 | 73.7 | 78.3 | 71.5 | 75.7
|2011                                                                                                                              | 73.3 | 72.3 | 69.7 | 64.1 | 63.5  | 64.2 | 65.3 | 65.9 | 67.0 | 71.1 | 70.2 | 72.3
|2012                                                                                                                              | 72.5 | 71.3 | 64.0 | 63.1 | 55.9  | 59.0 | 58.2 | 58.1 | 62.9 | 67.8 | 68.8 | 69.6
|2013                                                                                                                              | 72.5 | 70.6 | 70.5 | 64.2 | 55.1  | 54.7 | 56.3 | 57.1 | 58.0 | 68.4 | 69.3 | 72.0
|2014                                                                                                                              | 69.3 | 71.3 | 69.9 | 64.3 | 59.4  | 56.7 | 56.5 | 55.6 | 59.8 | 64.2 | 71.5 | 69.5
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|2015                                                                                                                              | 71.5 | 73.1 | 69.5 | 62.5 | 55.8  | 55.4 | 56.1 | 51.0 | 57.6 | 64.1 | 65.6 | 67.8
|2016                                                                                                                              | 71.7 | 70.3 | 64.1 | 63.8 | 59.7  | 54.1 | 53.9 | 50.6 | 56.3 | 63.8 | 66.6 | 70.9
|2017                                                                                                                              | 68.8 | 66.8 | 68.3 | 59.6 | 58.7  | 54.6 | 55.0 | 53.1 | 56.5 | 67.6 | 67.7 | 72.0
|2018                                                                                                                              | 70.1 | 69.0 | 69.5 | 66.5 | 51.9  | 52.6 | 52.6 | 54.2 | 56.9 | 66.4 | 68.2 | 69.7
|2019                                                                                                                              | 72.0 | 68.6 | 68.5 | 59.3 | 55.6  | 52.3 | 54.0 | 54.3 | 58.4 | 66.1 | 68.9 | 68.4
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|2020                                                                                                                              | 68.3 | 69.7 | 66.0 | 63.2 | 56.9  | 50.0 | 50.1 | 50.1 | 58.5 | 61.6 | 67.5 | 69.1
|2021                                                                                                                              | 72.6 | 73.5 | 69.0 | 65.4 | 61.6  | 52.7 | 53.0 | 53.8 | 54.2 | 64.8 | 70.7 | 70.0
|2022                                                                                                                              | 74.5 | 71.9 | 69.9 | 67.3 | 59.1  | 57.6 | 59.5 | 54.3 | 59.5 | 66.2 | 71.7 | 73.6
|2023                                                                                                                              | 73.3 | 72.5 | 73.3 | 64.3 | 62.2  | 62.1 | 59.5 | 57.7 | NA   | 68.9 | 71.0 | 73.2
|2024                                                                                                                              | 73.9 | 73.4 | 69.9 | 66.0 | NA    |      |      |      |      |      |      |     
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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