Quarterly Sales Estimates for QSFT
| 12-2006 | 155.3 | 154.5 | 154.9 | 0 | 1/10/2007 |
| 03-2007 | 138.4 | 134 | 136.013 | 2.223 | 4/23/2007 |
| 06-2007 | 141.72 | 137.54 | 139.63 | 2.955 | 9/7/2007 |
| 09-2007 | 155 | 146.52 | 150.987 | 4.241 | 10/5/2007 |
| 12-2007 | 186.8 | 170.79 | 179.468 | 5.361 | 1/5/2008 |
| 03-2008 | 171 | 162 | 166.907 | 4.263 | 5/5/2008 |
| 06-2008 | 176.05 | 165.1 | 172.265 | 4.205 | 6/5/2008 |
| 09-2008 | 176.12 | 170.9 | 173.77 | 2.381 | 10/15/2008 |
| 12-2008 | 205 | 190.32 | 200.015 | 5.581 | 2/4/2009 |
| 03-2009 | 185.2 | 171.9 | 179.21 | 4.309 | 4/5/2009 |
| 06-2009 | 180.2 | 160 | 166.832 | 5.009 | 7/24/2009 |
| 09-2009 | 178.7 | 168 | 172.504 | 3.608 | 10/28/2009 |
| 12-2009 | 196.3 | 180.2 | 188.97 | 4.914 | 1/20/2010 |
| 03-2010 | 174.8 | 167.2 | 171.721 | 2.884 | 4/6/2010 |
| 06-2010 | 173.4 | 170 | 171.31 | 1.219 | 7/16/2010 |
| 09-2010 | 191.64 | 178.7 | 185.668 | 5.823 | 10/15/2010 |
| 12-2010 | 216.4 | 212.863 | 214.988 | 1.529 | 10/29/2010 |