1958 -36.6 -39.3 -42.2 -44.1 -43.4 -47.9 -44.9 -47.9 -49.2 -44.7 -40.0 -37.1 1959 -36.9 -37.6 -39.1 -42.6 -44.2 -46.0 -46.1 -46.5 -49.1 -44.1 -40.2 -35.6 1960 -37.1 -36.2 -45.4 -44.5 -45.4 -46.7 -47.1 -45.5 -45.7 -44.2 -39.3 -36.4 1961 -36.8 -37.3 -41.5 -42.1 -42.4 -40.8 -42.8 -44.3 -43.1 -43.7 -40.8 -38.7 1962 -39.1 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 1963 -999 -999 -999 -999 -44.6 -46.1 -45.0 -45.7 -44.2 -45.6 -43.2 -38.7 1964 -36.4 -39.5 -41.9 -46.3 -46.4 -44.4 -45.8 -42.6 -47.5 -44.0 -39.1 -37.0 1965 -37.7 -35.5 -41.6 -43.7 -43.0 -45.0 -45.5 -44.6 -45.1 -42.5 -39.5 -37.3 1966 -37.6 -36.4 -37.7 -43.0 -44.9 -45.3 -45.3 -48.0 -46.5 -43.0 -40.4 -37.8 1967 -34.3 -38.4 -38.2 -44.5 -44.4 -43.2 -43.7 -47.1 -43.4 -44.1 -37.5 -35.6 1968 -36.3 -37.7 -41.5 -42.5 -43.7 -42.5 -46.4 -46.0 -47.4 -41.1 -39.1 -38.1 1969 -35.3 -37.1 -42.8 -42.1 -44.9 -42.9 -46.2 -48.2 -47.8 -42.8 -41.5 -37.1 1970 -35.7 -38.1 -39.9 -41.3 -43.6 -42.9 -43.7 -47.4 -45.1 -41.8 -40.6 -36.8 1971 -33.8 -34.6 -41.0 -42.4 -41.4 -43.7 -45.5 -43.8 -44.4 -42.3 -41.1 -34.1 1972 -33.4 -37.5 -41.5 -42.2 -44.7 -44.4 -46.7 -42.8 -43.7 -44.4 -39.7 -39.0 1973 -37.1 -37.6 -41.9 -39.8 -42.5 -43.2 -44.4 -47.1 -44.5 -43.1 -38.4 -38.0 1974 -30.8 -38.8 -43.8 -45.0 -45.7 -41.7 -45.3 -45.7 -47.2 -41.5 -39.1 -36.2 1975 -34.7 -38.5 -39.1 -43.4 -41.4 -43.4 -45.4 -47.3 -47.5 -41.9 -37.9 -36.2 1976 -33.9 -37.3 -41.1 -44.9 -47.0 -44.2 -44.3 -45.2 -46.4 -43.0 -39.8 -33.6 1977 -33.3 -36.9 -41.1 -45.0 -40.9 -43.6 -44.0 -43.6 -48.1 -45.9 -43.2 -34.5 1978 -38.5 -37.1 -41.7 -43.6 -44.1 -43.6 -43.7 -49.3 -46.2 -44.6 -40.3 -35.8 1979 -34.9 -39.4 -42.5 -42.7 -45.0 -46.3 -48.2 -46.4 -45.8 -45.5 -40.4 -35.6 1980 -34.2 -37.1 -38.7 -39.2 -43.5 -43.2 -42.1 -42.7 -43.1 -45.6 -38.5 -35.8 1981 -36.0 -37.6 -38.5 -44.6 -45.8 -43.4 -42.6 -40.5 -41.2 -42.7 -40.9 -35.0 1982 -34.7 -37.3 -45.7 -47.4 -999 -999 -999 -999 -999 -999 -999 -999 1983 -999 -999 -999 -41.6 -41.2 -42.7 -48.5 -45.0 -40.7 -44.9 -41.7 -35.9 1984 -34.1 -39.5 -39.6 -41.3 -40.7 -45.8 -44.7 -45.7 -45.3 -45.7 -39.1 -35.1 1985 -34.4 -40.5 -41.9 -42.8 -46.3 -43.6 -46.8 -43.9 -46.4 -43.8 -41.6 -37.8 1986 -33.9 -32.1 -41.4 -44.6 -43.1 -46.3 -45.1 -45.8 -44.4 -42.7 -40.1 -35.8 1987 -33.5 -39.3 -41.7 -43.1 -44.4 -41.1 -44.4 -50.0 -44.7 -43.2 -40.8 -37.2 1988 -34.5 -38.7 -40.0 -43.7 -41.5 -43.7 -46.2 -45.1 -44.4 -41.2 -40.5 -37.9 1989 -37.4 -38.3 -41.9 -44.5 -46.5 -46.8 -45.8 -45.3 -41.6 -42.6 -40.2 -32.2 1990 -34.2 -38.7 -42.2 -43.1 -43.5 -44.5 -43.1 -45.8 -47.0 -42.7 -37.9 -33.5 1991 -35.5 -35.2 -39.9 -39.9 -46.5 -41.0 -40.3 -42.4 -46.2 -43.5 -39.5 -34.8 1992 -35.3 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999