1991,1990,1991,1990,1990,1989,1988,1986,1985,1985,1984,1984,1985,1987,1988,1990,1991,1993,1993,1994,1993;837,836,835,834,833,832,833,833,832,831,831,829,828,828,829,829,831,832,833,835,836