Michael Lewis has seen concerts during 33 years.

Year   Concerts Seen  
2023 2 concerts
2022 1 concert
2019 2 concerts
2018 2 concerts
2016 1 concert
2015 1 concert
2014 1 concert
2012 1 concert
2011 1 concert
2010 1 concert
2009 1 concert
2005 2 concerts
2003 1 concert
2002 1 concert
1999 1 concert
1998 2 concerts
1994 1 concert
1990 1 concert
1989 1 concert
1988 6 concerts
1986 2 concerts
1985 3 concerts
1983 2 concerts
1982 6 concerts
1981 4 concerts
1980 2 concerts
1979 1 concert
1978 1 concert
1976 3 concerts
1975 3 concerts
1974 3 concerts
1973 1 concert
1972 1 concert