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| Illinois Natural Gas Number of Commercial Consumers - Sales (Number of Elements) | |||||
| Decade | Year-0 | Year-1 | Year-2 | Year-3 | Year-4 | Year-5 | Year-6 | Year-7 | Year-8 | Year-9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1990's | 239,750 | 225,926 | ||||||||
| 2000's | 219,665 | 213,741 | 218,490 | 223,223 | 216,827 | 219,323 | 242,091 | |||
| 2010's | 240,197 | 241,582 | 244,480 | 225,913 | 235,097 | 231,780 | 232,749 | 232,686 | 233,458 | 234,457 |
| 2020's | 234,519 | 237,179 | 237,568 | 235,731 | 236,796 |
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 11/28/2025 |
| Next Release Date: 12/31/2025 |