Erin X has seen concerts during 18 years.

Year   Concerts Seen  
2015 2 concerts
2012 1 concert
2011 1 concert
2009 2 concerts
2001 1 concert
1997 2 concerts
1996 5 concerts
1995 1 concert
1994 3 concerts
1993 4 concerts
1992 6 concerts
1991 2 concerts
1990 6 concerts
1989 2 concerts
1988 2 concerts
1987 2 concerts
1986 2 concerts
1985 1 concert