1957 -15.60 -21.10 -30.00 -35.60 -36.10 -33.30 -41.10 -28.90 -30.60 -26.70 -20.60 -12.20 1958 -15.00 -15.00 -28.30 -30.60 -27.20 -41.10 -41.10 -42.20 -40.00 -30.00 -21.70 -17.20 1959 -17.20 -18.30 -25.00 -23.30 -33.30 -32.80 -33.90 -38.90 -35.60 -33.90 -22.80 -14.40 1960 -15.60 -23.90 -31.70 -30.00 -32.80 -30.60 -33.90 -40.60 -33.90 -27.20 -24.40 -14.40 1961 -13.10 -20.00 -29.70 -24.10 -36.20 -34.80 -35.70 -37.20 -33.20 -37.60 -22.30 -16.30 1962 -15.70 -23.90 -28.80 -36.20 -29.30 -40.30 -36.00 -34.70 -43.70 -33.20 -22.00 -15.60 1963 -15.30 -21.30 -31.00 -30.10 -34.00 -28.60 -39.90 -35.20 -36.80 -27.60 -19.40 -17.20 1964 -17.30 -22.60 -25.30 -30.30 -31.10 -31.90 -32.10 -40.40 -35.00 -31.40 -19.80 -13.80 1965 -14.40 -19.50 -28.80 -27.30 -37.00 -34.70 -30.20 -33.10 -39.00 -28.40 -19.10 -13.40 1966 -15.30 -18.60 -25.90 -26.70 -33.60 -29.20 -34.70 -40.30 -34.10 -31.70 -20.10 -13.70 1967 -13.50 -15.60 -26.70 -33.30 -28.00 -32.00 -38.20 -31.40 -38.00 -34.40 -23.20 -14.50 1968 -13.90 -16.80 -24.60 -29.20 -36.50 -41.60 -36.60 -38.70 -42.70 -28.30 -21.60 -15.10 1969 -15.60 -23.60 -24.30 -33.20 -31.10 -38.10 -30.80 -37.30 -33.80 -31.20 -23.50 -14.30 1970 -11.80 -19.00 -21.60 -26.10 -35.00 -30.10 -33.90 -33.80 -35.30 -27.56 -21.40 -14.00 1971 -12.60 -20.70 -26.66 -29.82 -29.36 -35.39 -39.58 -37.42 -34.46 -30.60 -22.70 -14.70 1972 -16.00 -17.83 -24.27 -28.75 -30.33 -30.42 -33.69 -32.84 -33.87 -26.41 -19.80 -14.66 1973 -13.83 -23.70 -29.87 -31.47 -28.16 -31.97 -34.19 -34.95 -33.81 -27.03 -18.15 -14.00 1974 -11.80 -20.25 -25.74 -29.68 -30.59 -32.08 -38.78 -35.19 -40.37 -29.67 -15.90 -12.70 1975 -14.20 -20.00 -27.30 -28.96 -32.21 -32.19 -34.64 -39.68 -35.38 -30.27 -20.16 -14.89 1976 -12.41 -20.43 -24.15 -32.30 -34.83 -35.51 -35.08 -40.45 -40.57 -36.11 -19.46 -13.31 1977 -12.45 -23.19 -26.31 -31.49 -36.00 -33.53 -34.84 -37.09 -39.88 -30.53 -19.42 -14.71 1978 -16.36 -22.12 -23.77 -30.65 -32.57 -34.37 -38.19 -43.77 -37.57 -30.42 -19.48 -14.91 1979 -13.61 -21.75 -27.60 -35.36 -29.58 -31.99 -37.91 -40.85 -32.01 -28.99 -20.64 -12.50 1980 -12.52 -16.00 -24.80 -21.90 -26.00 -35.00 -25.80 -28.90 -34.50 -27.60 -22.40 -14.80 1981 -15.10 -23.10 -23.90 -31.40 -32.10 -30.00 -35.80 -43.00 -35.20 -28.90 -23.10 -14.70 1982 -13.70 -20.00 -29.90 -38.80 -35.80 -30.50 -36.60 -31.80 -36.30 -30.00 -21.70 -13.10 1983 -15.10 -26.50 -27.90 -28.40 -29.50 -39.60 -40.00 -42.50 -34.10 -31.10 -22.90 -15.70 1984 -15.30 -19.50 -21.60 -27.60 -29.70 -28.90 -40.10 -39.20 -36.80 -25.30 -20.20 -12.80 1985 -13.60 -23.00 -27.30 -28.50 -29.40 -30.30 -41.40 -39.10 -33.40 -29.10 -16.30 -15.70 1986 -14.80 -19.80 -27.80 -27.60 -27.00 -36.90 -36.40 -40.60 -44.70 -29.80 -20.80 -14.30 1987 -13.80 -19.10 -32.90 -32.90 -31.30 -28.80 -28.30 -32.10 -34.20 -28.40 -23.50 -14.00 1988 -13.60 -20.70 -29.00 -26.23 -32.04 -34.39 -30.49 -25.88 -28.57 -25.77 -20.05 -12.75 1989 -13.17 -18.75 -24.80 -24.55 -35.82 -38.47 -35.40 -30.59 -35.23 -27.19 -20.16 -13.56 1990 -12.48 -20.10 -32.30 -29.70 -27.60 -38.60 -36.50 -40.30 -30.40 -32.81 -22.51 -13.53 1991 -15.20 -15.80 -29.10 -28.40 -30.10 -32.10 -35.60 -37.60 -31.20 -25.90 -20.40 -11.00 1992 -14.60 -22.50 -22.80 -28.70 -24.00 -32.40 -29.63 -34.08 -33.79 -23.90 -20.74 -12.80 1993 -12.64 -18.08 -27.63 -29.19 -32.07 -29.03 -26.17 -30.64 -34.21 -28.53 -20.57 -13.94 1994 -15.13 -21.90 -29.60 -25.90 -29.90 -31.70 -33.00 -38.90 -36.50 -25.40 -16.90 -11.80 1995 -14.10 -16.80 -29.40 -29.20 -35.70 -26.50 -35.10 -34.60 -32.50 -31.10 -21.40 -13.90 1996 -13.80 -20.80 -26.70 -22.40 -37.97 -30.87 -38.23 -32.02 -34.85 -29.83 -19.23 -12.51 1997 -13.00 -20.10 -26.80 -33.00 -34.00 -28.60 -34.60 -38.80 -33.40 -23.80 -18.20 -10.50 1998 -13.50 -15.60 -27.10 -33.00 -24.00 -25.80 -40.10 -34.60 -35.70 -32.00 -22.50 -14.50 1999 -12.70 -22.10 -26.20 -33.60 -32.80 -34.42 -30.96 -37.78 -28.56 -24.47 -18.64 -14.34 2000 -16.90 -19.10 -21.90 -33.80 -29.30 -30.00 -29.30 -34.10 -30.83 -24.75 -16.68 -15.26 2001 -14.53 -17.95 -22.86 -25.91 -27.83 -28.75 -32.71 -41.37 -33.56 -30.06 -21.42 -15.05 2002 -13.40 -20.20 -19.90 -30.80 -26.84 -30.17 -36.58 -33.92 -24.48 -27.08 -15.89 -14.30 2003 -12.20 -19.90 -22.50 -28.30 -31.50 -33.10 -36.00 -36.30 -33.81 -26.60 -20.70 -13.10 2004 -13.70 -21.00 -28.10 -29.70 -34.20 -32.15 -40.40 -41.51 -37.51 -30.15 -19.40 -14.20 2005 -9.70 -23.00 -28.30 -31.80 -30.30 -30.14 -30.70 -36.57 -25.95 -25.15 -17.93 -12.63 2006 -11.70 -15.30 -28.90 -35.80 -37.20 -31.70 -36.50 -29.60 -33.70 -26.10 -19.20 -14.40 2007 -10.40 -19.70 -22.50 -25.90 -27.00 -29.40 -29.50 -37.00 -32.50 -31.52 -18.30 -14.10 2008 -12.30 -19.80 -23.00 -29.30 -32.00 -30.10 -34.92 -41.20 -27.87 -25.00 -22.40 -15.90 2009 -14.40 -20.90 -24.50 -28.20 -32.90 -34.10 -26.90 -33.50 -35.90 -30.80 -16.80 -12.20 2010 -14.10 -18.50 -22.20 -29.80 -35.70 -35.90 -40.40 -31.40 -33.40 -28.20 -22.50 -14.90 2011 -15.30 -21.80 -26.00 -30.30 -31.60 -33.80 -23.40 -29.20 -38.40 -26.18 -20.07 -14.80