Liza Wismer has seen concerts during 12 years.

Year   Concerts Seen  
2010 2 concerts
2004 1 concert
2003 2 concerts
1999 1 concert
1998 2 concerts
1996 1 concert
1994 1 concert
1993 2 concerts
1992 4 concerts
1991 2 concerts
1987 4 concerts
1984 1 concert