Andrew Gawron has seen concerts during 11 years.

Year   Concerts Seen  
2007 1 concert
1998 1 concert
1996 1 concert
1993 1 concert
1992 2 concerts
1990 1 concert
1988 2 concerts
1987 5 concerts
1986 1 concert
1984 2 concerts
1983 1 concert