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| Michigan Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) | |||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1991 | 12.0 | 12.8 | 14.6 | 30.2 | 17.0 | 11.7 | 5.0 | -0.7 | -6.8 | -2.6 | -11.4 | -14.2 |
| 1992 | -8.1 | -14.1 | -31.6 | -37.7 | -28.9 | -21.6 | -14.9 | -8.9 | 1.2 | -1.2 | 1.1 | -2.0 |
| 1993 | -7.5 | -20.7 | -25.8 | -17.2 | -1.0 | 3.7 | 5.2 | 7.6 | 6.1 | 6.7 | 6.2 | 7.4 |
| 1994 | -4.8 | -0.4 | 22.1 | 37.4 | 24.6 | 15.8 | 10.2 | 7.2 | 6.2 | 5.4 | 12.3 | 21.2 |
| 1995 | 45.7 | 54.3 | 51.8 | 20.6 | 8.0 | 3.8 | 3.1 | -2.0 | -4.1 | -3.7 | -11.8 | -24.0 |
| 1996 | -36.3 | -39.8 | -47.6 | -41.4 | -32.3 | -22.7 | -17.5 | -9.7 | -4.1 | -0.9 | -0.2 | 9.0 |
| 1997 | 16.9 | 31.2 | 41.0 | 40.5 | 23.5 | 15.4 | 11.0 | 6.8 | 3.1 | 0.2 | 1.9 | 3.7 |
| 1998 | 17.4 | 33.0 | 41.3 | 43.7 | 44.2 | 36.0 | 22.0 | 14.2 | 6.0 | 4.5 | 11.4 | 17.1 |
| 1999 | 13.2 | 11.6 | -3.0 | -5.2 | -8.3 | -12.0 | -10.3 | -8.2 | -4.2 | -4.4 | 4.1 | -4.6 |
| 2000 | -15.1 | -23.7 | -11.0 | -15.8 | -15.1 | -16.1 | -14.5 | -13.9 | -13.2 | -10.6 | -24.1 | -35.4 |
| 2001 | -25.7 | -42.7 | -50.5 | -37.9 | -24.2 | -12.5 | -4.8 | 1.9 | 7.1 | 8.2 | 22.7 | 55.2 |
| 2002 | 82.1 | 122.5 | 141.0 | 96.2 | 48.7 | 31.2 | 19.0 | 9.8 | 3.8 | -3.0 | -12.5 | -20.8 |
| 2003 | -43.7 | -68.7 | -73.9 | -68.9 | -51.7 | -36.6 | -22.5 | -16.4 | -10.3 | -2.0 | 3.1 | 8.2 |
| 2004 | 13.5 | 54.6 | 96.1 | 99.9 | 53.8 | 28.8 | 16.7 | 16.3 | 13.1 | 10.0 | 12.2 | 14.1 |
| 2005 | 30.1 | 55.6 | 53.2 | 42.6 | 30.1 | 19.0 | 9.4 | 1.6 | -0.9 | -1.4 | -2.1 | -8.4 |
| 2006 | 13.3 | 16.8 | 33.7 | 33.0 | 29.2 | 26.9 | 19.3 | 13.6 | 10.9 | 5.2 | 6.7 | 22.6 |
| 2007 | 13.3 | -6.9 | -2.6 | -10.5 | -7.6 | -5.1 | 0.7 | 1.8 | 0.8 | 4.6 | 0.3 | -8.9 |
| 2008 | -18.5 | -16.3 | -28.9 | -17.1 | -14.4 | -11.6 | -7.5 | -1.1 | 0.3 | -0.8 | -1.3 | -6.2 |
| 2009 | -12.6 | 0.3 | 17.7 | 11.6 | 10.2 | 9.1 | 7.1 | 4.0 | 3.6 | 3.0 | 8.4 | 14.6 |
| 2010 | 19.3 | 18.2 | 25.3 | 27.4 | 14.5 | 6.2 | -2.0 | -4.9 | -3.6 | -0.4 | -4.0 | -7.8 |
| 2011 | -5.5 | -9.5 | -19.6 | -24.2 | -18.3 | -13.7 | -8.9 | -3.9 | -1.7 | -0.6 | 1.7 | 14.5 |
| 2012 | 29.2 | 50.2 | 73.6 | 65.4 | 47.7 | 32.6 | 21.4 | 14.6 | 8.1 | 1.6 | -2.4 | -2.6 |
| 2013 | -9.5 | -19.8 | ||||||||||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 4/30/2013 |
| Next Release Date: 5/31/2013 |