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| Iowa Residual Fuel Oil Sulfur Less Than or Equal to 1% Retail Sales by All Sellers (Dollars per Gallon) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1983 | - | - | - | NA | - | - | - | - | - | - | - | - |
| 1984 | W | W | W | W | 0.695 | 0.748 | 0.700 | 0.719 | 0.708 | 0.720 | W | W |
| 1985 | W | W | - | W | W | W | W | W | W | W | W | W |
| 1986 | NA | - | NA | W | W | W | 0.401 | W | 0.384 | 0.373 | W | W |
| 1987 | - | - | - | W | W | 0.388 | 0.378 | W | 0.345 | 0.344 | 0.385 | 0.334 |
| 1988 | 0.336 | 0.320 | 0.319 | 0.315 | 0.335 | 0.358 | W | 0.337 | 0.336 | 0.334 | 0.325 | W |
| 1989 | W | W | W | 0.332 | W | 0.343 | W | 0.324 | W | W | 0.316 | W |
| 1990 | W | W | W | 0.274 | W | W | 0.318 | W | 0.330 | 0.360 | 0.367 | W |
| 1991 | W | W | W | W | W | 0.334 | 0.331 | 0.328 | 0.320 | 0.322 | W | W |
| 1992 | W | W | W | W | W | W | W | W | W | W | W | W |
| 1993 | W | W | W | W | W | W | W | W | W | W | W | W |
| 1994 | W | W | 0.426 | W | W | W | W | W | W | W | W | W |
| 1995 | W | W | W | W | W | W | W | W | W | W | W | W |
| 1996 | W | W | W | W | W | W | W | NA | W | W | W | W |
| 1997 | W | W | W | W | W | W | W | W | W | W | W | - |
| 1998 | - | - | - | W | W | W | W | W | W | W | W | W |
| 1999 | - | W | - | W | W | W | W | W | W | W | W | - |
| 2000 | - | W | W | W | W | W | W | W | W | W | W | W |
| 2001 | W | - | W | W | W | W | W | W | 0.418 | W | W | W |
| 2002 | W | W | W | W | W | W | W | W | W | W | W | W |
| 2003 | - | W | W | W | W | W | W | W | W | W | W | W |
| 2004 | W | W | W | W | W | W | W | W | W | W | W | W |
| 2005 | NA | NA | NA | W | W | W | W | W | W | W | W | NA |
| 2006 | NA | NA | W | W | W | W | W | W | W | W | W | W |
| 2007 | - | - | - | - | - | - | - | - | - | - | - | - |
| 2008 | - | - | - | - | - | - | - | - | - | - | - | - |
| 2009 | - | - | - | - | - | - | - | - | - | - | - | - |
| 2010 | - | - | - | - | - | - | - | - | - | - | - | - |
| 2011 | - | - | - | - | - | - | - | - | - | - | - | - |
| 2012 | - | - | - | - | - | - | - | - | - | - | - | - |
| 2013 | - | - | ||||||||||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 5/1/2013 |
| Next Release Date: 6/3/2013 |