1958 -45.7 -44.1 -48.0 -58.3 -63.5 -69.8 -999 -74.5 -77.5 -71.3 -60.0 -49.1 1959 -42.6 -44.1 -48.7 -54.7 -62.2 -68.8 -73.6 -75.5 -75.9 -72.2 -66.6 -53.5 1960 -45.5 -45.2 -48.5 -55.8 -61.8 -68.6 -74.6 -76.6 -76.3 -70.4 -58.7 -45.8 1961 -44.3 -46.1 -50.1 -53.9 -63.4 -68.9 -74.4 -75.2 -72.7 -72.0 -65.1 -53.5 1962 -50.0 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 1963 -999 -999 -999 -999 -64.0 -69.5 -75.4 -76.6 -75.9 -71.1 -62.7 -49.6 1964 -45.6 -45.5 -48.8 -55.7 -64.2 -70.6 -72.2 -74.7 -72.7 -68.2 -52.9 -45.0 1965 -44.0 -44.7 -46.2 -53.9 -61.1 -68.4 -74.1 -76.0 -76.5 -72.1 -64.7 -48.8 1966 -44.0 -45.2 -47.1 -53.2 -60.2 -68.5 -73.7 -78.6 -75.6 -71.0 -59.2 -46.9 1967 -43.8 -44.1 -48.6 -54.8 -61.5 -67.9 -72.7 -75.3 -74.3 -68.7 -55.5 -43.6 1968 -43.6 -42.6 -47.4 -54.3 -61.2 -71.0 -74.9 -77.2 -75.4 -71.3 -47.5 -43.2 1969 -43.5 -44.2 -46.9 -53.6 -59.8 -68.8 -73.8 -75.7 -74.4 -73.5 -63.7 -51.5 1970 -45.6 -45.9 -47.0 -54.2 -63.9 -69.0 -74.1 -74.0 -74.3 -70.7 -62.4 -50.7 1971 -44.8 -45.0 -47.1 -52.4 -60.6 -69.0 -73.3 -75.8 -75.8 -71.5 -60.3 -47.4 1972 -43.8 -44.0 -47.8 -54.4 -62.8 -70.2 -72.0 -75.4 -74.8 -70.3 -63.6 -48.7 1973 -44.6 -45.9 -47.8 -56.0 -60.7 -69.5 -73.0 -75.3 -74.5 -72.3 -60.9 -50.1 1974 -44.8 -43.4 -46.9 -53.4 -62.0 -69.0 -72.7 -76.9 -74.7 -71.3 -51.5 -44.1 1975 -41.9 -43.5 -48.0 -54.1 -64.2 -70.5 -72.0 -72.0 -71.6 -72.5 -63.2 -48.5 1976 -42.6 -44.2 -47.5 -53.7 -62.4 -70.8 -74.7 -75.1 -74.3 -73.4 -59.0 -48.3 1977 -44.4 -45.8 -50.8 -55.8 -64.9 -66.0 -72.5 -74.6 -74.6 -70.8 -58.9 -43.7 1978 -43.6 -45.1 -48.9 -54.0 -62.2 -70.5 -76.2 -76.4 -76.2 -72.9 -59.8 -50.8 1979 -45.6 -44.4 -47.1 -53.7 -63.5 -71.8 -75.6 -78.9 -77.4 -70.0 -58.9 -44.2 1980 -43.5 -44.1 -48.5 -52.2 -61.3 -68.5 -73.5 -76.4 -75.4 -71.4 -61.8 -47.3 1981 -45.0 -44.8 -49.1 -54.2 -62.5 -70.1 -74.6 -78.4 -76.3 -71.6 -62.5 -47.6 1982 -44.9 -43.8 -46.8 -53.4 -999 -999 -999 -999 -999 -999 -999 -999 1983 -999 -999 -999 -56.4 -65.4 -71.1 -74.5 -78.8 -77.8 -72.9 -63.7 -51.6 1984 -45.3 -45.1 -49.5 -57.3 -63.1 -69.2 -77.4 -78.1 -77.5 -71.1 -62.4 -51.3 1985 -44.6 -44.4 -48.6 -54.5 -61.6 -69.4 -74.9 -76.7 -76.6 -73.2 -66.1 -54.1 1986 -46.9 -47.6 -48.0 -54.1 -62.7 -67.9 -73.9 -78.3 -77.8 -74.2 -61.5 -50.5 1987 -45.8 -45.2 -49.7 -56.0 -65.5 -71.5 -74.6 -75.8 -78.1 -72.0 -66.8 -52.0 1988 -45.1 -45.2 -50.7 -55.3 -65.1 -69.2 -72.7 -74.7 -71.5 -67.6 -55.1 -45.6 1989 -43.4 -44.6 -49.6 -54.1 -62.8 -71.4 -74.1 -75.5 -75.3 -71.0 -64.4 -48.4 1990 -45.3 -45.1 -47.9 -56.2 -61.3 -70.4 -72.2 -76.7 -74.4 -70.4 -66.5 -54.4 1991 -46.1 -46.7 -49.5 -54.7 -61.0 -69.4 -74.3 -75.5 -73.5 -70.0 -61.2 -44.4 1992 -42.9 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999