Al has seen concerts during 15 years.

Year   Concerts Seen  
2022 2 concerts
2021 2 concerts
2019 1 concert
2018 3 concerts
2017 2 concerts
2016 1 concert
2002 1 concert
1993 1 concert
1990 2 concerts
1989 1 concert
1988 1 concert
1987 6 concerts
1986 5 concerts
1985 6 concerts
1984 2 concerts