Quarterly Sales Estimates for VCLK
| 03-2007 | 151.35 | 148.48 | 149.182 | 0 | 4/25/2007 |
| 06-2007 | 164.18 | 153.38 | 158.939 | 2.85 | 6/25/2007 |
| 09-2007 | 170.19 | 144.36 | 159.37 | 6.638 | 10/17/2007 |
| 12-2007 | 176.37 | 173.9 | 175.088 | 0.924 | 11/27/2007 |
| 03-2008 | 176.26 | 169.5 | 170.654 | 2.008 | 3/17/2008 |
| 06-2008 | 163.8 | 162.58 | 163.283 | 0.383 | 7/30/2008 |
| 09-2008 | 154.91 | 149.7 | 152.342 | 1.901 | 10/27/2008 |
| 12-2008 | 145.1 | 138.1 | 142.694 | 1.781 | 2/11/2009 |
| 03-2009 | 135.4 | 126 | 130.254 | 2.626 | 5/4/2009 |
| 06-2009 | 132.8 | 125 | 128.564 | 1.967 | 8/3/2009 |
| 09-2009 | 131 | 126 | 129.242 | 1.226 | 10/26/2009 |
| 12-2009 | 137.24 | 110.4 | 129.952 | 7.542 | 2/2/2010 |
| 03-2010 | 97.4 | 94.9 | 96.13 | 1.025 | 4/15/2010 |
| 06-2010 | 98.859 | 95 | 96.897 | 0.9 | 7/13/2010 |
| 09-2010 | 104.372 | 101.8 | 102.83 | 0.853 | 10/25/2010 |
| 12-2010 | 126.393 | 122 | 124.866 | 1.128 | 2/14/2011 |
| 03-2011 | 116.65 | 110.78 | 113.389 | 2.358 | 4/26/2011 |