Archive -- number of messages per month shown in the chart below:
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| 2009 | 1 | 1 | ||||||||||
| 2008 | 3 | 2 | 1 | 1 | ||||||||
| 2007 | 1 | 1 | ||||||||||
| 2006 | 1 | 1 | 4 | 1 | 1 | 1 | ||||||
| 2005 | 4 | 2 | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 1 | 1 | |
| 2004 | 2 | 1 | 1 | 1 | 1 | 3 | 3 | 2 | 3 | |||
| 2003 | 1 | 2 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 2 | 1 | 1 |
| 2002 | 3 | 1 | 2 | 3 | 4 | 1 | 1 | 3 | ||||
| 2001 | 2 | 1 | 2 | 2 | 1 | 3 | 2 | 4 | 5 | 3 | 1 | |
| 2000 | 1 | 1 | 1 | 3 | 2 | 3 | 3 | 1 | 7 | 1 | ||
| 1999 | 2 | 2 | 2 | 3 | 3 | 2 |