Number of live performances per year
| 2012 | 13 |
| 2011 | 8 |
| 2010 | 11 |
| 2009 | 14 |
| 2008 | 10 |
| 2007 | 10 |
| 2006 | 11 |
| 2005 | 5 |
| 2004 | 9 |
| 2003 | 17 |
| 2002 | 7 |
| 2001 | 5 |
| 2000 | 4 |
| 1999 | 5 |
| 1998 | 6 |
| 1997 | 5 |
| 1996 | 8 |
| 1995 | 3 |
| 1994 | 11 |
| 1993 | 10 |
| 1992 | 12 |
| 1991 | 13 |
| 1990 | 17 |
| 1989 | 13 |
| 1988 | 16 |
| 1987 | 3 |
| 1986 | 2 |
| 1984 | 5 |
| 1981 | 6 |
| 1975 | 21 |
| 1974 | 5 |
| 1965 | 5 |
| 1964 | 4 |
| 1963 | 1 |