| Month | Number of messages |
|---|---|
| 2009 December | 1 |
| 2009 July | 1 |
| 2009 January | 1 |
| 2008 November | 1 |
| 2008 October | 1 |
| 2008 September | 2 |
| 2008 August | 1 |
| 2008 July | 3 |
| 2008 April | 1 |
| 2008 February | 5 |
| 2007 December | 1 |
| 2007 September | 1 |
| 2007 May | 1 |
| 2007 February | 3 |
| 2007 January | 4 |
| 2006 December | 1 |
| 2006 November | 6 |
| 2006 October | 17 |
| 2006 September | 9 |
| 2006 August | 1 |
| 2006 May | 8 |
| 2006 March | 5 |
| 2006 February | 22 |
| 2006 January | 26 |
| 2005 December | 10 |
| 2005 November | 13 |
| 2005 October | 68 |
| 2005 September | 65 |
| 2005 August | 10 |
| 2005 July | 2 |
| 2005 June | 2 |
| 2005 May | 3 |
| 2005 April | 9 |
| 2004 December | 23 |
| 2004 November | 5 |
| 2004 October | 7 |
| 2004 September | 15 |
| 2004 August | 1 |
| 2004 July | 14 |
| 2004 June | 39 |
| 2004 May | 4 |
| 2004 April | 7 |
| 2004 March | 8 |
| 2004 February | 52 |
| 2004 January | 10 |