Michael Richardson has seen concerts during 13 years.

Year   Concerts Seen  
2023 1 concert
2015 1 concert
2014 1 concert
2005 1 concert
2000 1 concert
1979 1 concert
1977 1 concert
1976 1 concert
1975 1 concert
1974 1 concert
1969 2 concerts
1967 4 concerts
1965 1 concert