| Month | Number of messages |
|---|---|
| 2012 May | 5 |
| 2011 October | 1 |
| 2011 September | 6 |
| 2011 August | 18 |
| 2010 June | 1 |
| 2010 March | 1 |
| 2009 September | 1 |
| 2009 August | 11 |
| 2008 November | 3 |
| 2008 October | 1 |
| 2008 August | 404 |
| 2008 March | 3 |
| 2008 January | 2 |
| 2007 September | 17 |
| 2007 August | 1 |
| 2006 September | 1 |
| 2006 August | 17 |
| 2006 July | 1 |
| 2005 June | 4 |
| 2005 May | 9 |
| 2004 October | 2 |
| 2004 September | 19 |
| 2004 June | 1 |
| 2004 April | 7 |
| 2004 March | 2 |
| 2004 January | 22 |
| 2003 December | 1 |
| 2003 November | 4 |
| 2003 October | 42 |
| 2003 September | 8 |
| 2003 August | 32 |