Greg Wallis has seen concerts during 35 years.

Year   Concerts Seen  
2005 2 concerts
2001 1 concert
1999 6 concerts
1998 17 concerts
1997 16 concerts
1996 10 concerts
1995 16 concerts
1994 12 concerts
1993 8 concerts
1992 6 concerts
1991 8 concerts
1990 10 concerts
1989 21 concerts
1988 21 concerts
1987 16 concerts
1986 7 concerts
1985 8 concerts
1984 12 concerts
1983 8 concerts
1982 3 concerts
1981 5 concerts
1980 2 concerts
1979 5 concerts
1978 13 concerts
1977 8 concerts
1976 5 concerts
1975 6 concerts
1974 8 concerts
1973 10 concerts
1972 13 concerts
1971 5 concerts
1970 26 concerts
1969 38 concerts
1968 1 concert
1966 1 concert