Stefan Sysko has seen concerts during 20 years.

Year   Concerts Seen  
2019 2 concerts
2018 1 concert
2017 1 concert
2016 2 concerts
2015 3 concerts
2012 1 concert
2005 1 concert
2001 1 concert
1998 1 concert
1993 1 concert
1991 2 concerts
1990 1 concert
1989 1 concert
1988 1 concert
1987 4 concerts
1986 6 concerts
1985 5 concerts
1984 3 concerts
1983 2 concerts
1982 1 concert