1980    -999    -999    -999    -999    -999   -20.0   -11.0   -14.0   -17.0   -11.0    -7.0    -1.0
1981     0.0    -3.0    -7.0   -14.0   -17.0   -18.0   -19.0   -27.0   -19.0   -11.0    -6.0    -1.0
1982     2.0    -2.0   -10.0   -22.0   -19.0   -22.0   -18.0   -18.0   -18.0   -13.0     0.0     3.0
1983     1.0    -3.0    -8.0   -11.0   -11.0   -20.0   -22.0   -24.0   -17.0   -14.0    -5.0     3.0
1984     3.0    -3.0    -7.0   -13.0   -15.0   -14.0   -29.0   -27.0   -23.0   -12.0    -6.0     3.0
1985     2.0    -5.0   -10.0   -13.0   -14.0   -23.0   -28.0   -24.0   -20.0   -14.0    -4.0     4.0
1986     4.0    -1.0    -9.0   -15.0   -13.0   -20.0   -23.0   -25.0   -26.0   -14.0    -6.0     3.0
1987     6.0    -2.0   -15.0   -16.0   -15.0   -16.0   -16.0   -18.0   -19.0   -13.0    -5.0     5.0
1988     3.0    -2.0   -11.0   -10.0   -15.0   -15.0   -16.0   -14.0   -16.0   -12.0    -3.0     3.0
1989     4.0    -1.0    -7.0    -9.0   -21.0   -21.0   -22.0   -23.0   -22.0   -12.0    -3.0     3.0
1990     3.0     1.0    -999    -999    -999    -999    -999    -999    -999    -999    -999    -999