1983    -999    -999    -999    -999    -999    -999  8178.6  8218.3  8370.7  8191.4  8394.0  8636.3
1984  8827.7  8602.1  8568.9  8302.5  8503.7  8223.0  8195.8  8416.1  8276.8  8348.9  8407.1  8703.5
1985  8733.5  8587.5  8532.7  8480.9  8266.8    -999    -999    -999    -999    -999    -999    -999
1986    -999    -999    -999  8380.9  8350.3  8373.8  8284.1  8375.7  8267.1  8350.6  8465.0  8619.7
1987  8812.6  8700.0  8495.7  8427.2  8297.5  8462.1  8385.2  8186.0  8392.3  8410.6  8450.3  8601.6
1988  8650.3  8546.5  8429.0  8439.3  8324.0  8369.0  8294.7  8171.6  8357.5  8445.2  8442.8  8596.3
1989  8573.7  8550.0  8388.8  8486.9  8245.5  8184.5  8361.7  8354.7  8442.8  8376.3  8333.3  8675.2
1990  8684.2  8536.9  8420.3  8401.0  8447.3  8363.6  8549.7  8268.6  8204.1  8292.9  8544.6  8608.4
1991  8603.4  8633.0  8474.1    -999    -999    -999    -999    -999    -999    -999    -999    -999