Year   Concerts Seen  
1991 1 concert
1990 3 concerts
1989 13 concerts
1988 4 concerts
1987 6 concerts
1986 8 concerts
1985 7 concerts
1984 5 concerts
1983 6 concerts
1982 9 concerts
1981 12 concerts
1980 12 concerts
1979 11 concerts
1977 1 concert