Quarterly Sales Estimates for PPL
| 03-2007 | 1884 | 1884 | 1884 | 0 | 2/28/2007 |
| 06-2007 | 1735 | 1629.5 | 1682.25 | 74.599 | 5/31/2007 |
| 09-2007 | 1784 | 1744.6 | 1764.3 | 27.86 | 10/2/2007 |
| 12-2007 | 1696 | 1695 | 1695.5 | 0.707 | 12/31/2007 |
| 03-2008 | 1612.3 | 1612.3 | 1612.3 | 0 | 4/1/2008 |
| 06-2008 | 1550.7 | 1550.7 | 1550.7 | 0 | 5/30/2008 |
| 09-2008 | 1598.5 | 1598.5 | 1598.5 | 0 | 10/3/2008 |
| 12-2008 | 1676.9 | 1676.9 | 1676.9 | 0 | 1/7/2009 |
| 03-2009 | 1640.9 | 1640.9 | 1640.9 | 0 | 4/23/2009 |
| 06-2009 | 1442.3 | 1442.3 | 1442.3 | 0 | 7/13/2009 |
| 09-2009 | 1548.1 | 1548.1 | 1548.1 | 0 | 7/13/2009 |
| 12-2009 | 1514.7 | 1514.7 | 1514.7 | 0 | 7/13/2009 |
| 06-2010 | 1802.2 | 1802.2 | 1802.2 | 0 | 5/28/2010 |
| 09-2010 | 3022 | 1912.2 | 2467.1 | 784.747 | 10/13/2010 |
| 12-2010 | 3825 | 2277.3 | 2889.833 | 822.747 | 1/20/2011 |
| 03-2011 | 2949.3 | 2182.6 | 2565.95 | 542.138 | 4/20/2011 |
| 06-2011 | 2574.1 | 1960.06 | 2179.52 | 342.434 | 7/25/2011 |