Jtmts has seen concerts during 11 years.

Year   Concerts Seen  
1999 1 concert
1993 1 concert
1987 1 concert
1983 1 concert
1977 1 concert
1976 1 concert
1975 2 concerts
1971 1 concert
1970 1 concert
1969 2 concerts
1968 4 concerts