1978 40.77 96.26 17.92 59.50 4.66 740 1979 41.65 97.54 18.96 60.00 4.65 791 1980 40.70 98.71 19.39 60.50 4.61 862 1981 40.29 100.07 20.16 61.00 4.54 934 1982 43.12 101.65 21.13 61.50 4.51 997 1983 45.47 103.01 21.62 62.37 4.46 1079 1984 49.43 104.36 23.01 63.24 4.41 1207 1985 53.59 105.85 23.71 64.12 4.33 1370 1986 56.35 107.51 24.52 64.99 4.24 1435 1987 60.12 109.30 25.32 65.86 4.15 1520 1988 64.45 111.03 25.81 66.15 4.05 1638 1989 65.47 112.70 26.21 66.45 3.97 1635 1990 65.86 114.33 26.41 66.74 3.93 1695 1991 69.15 115.82 26.94 66.30 3.89 1842 1992 72.14 117.17 27.46 66.20 3.85 2086 1993 77.02 118.52 27.99 66.70 3.81 2262 1994 81.81 119.85 28.51 66.60 3.78 2367 1995 88.47 121.12 29.04 67.20 3.74 2553 1996 92.60 122.39 30.48 67.20 3.72 2793 1997 91.49 123.63 31.91 67.50 3.64 2919 1998 86.61 124.76 33.35 67.60 3.63 3091 1999 90.50 125.79 34.78 67.70 3.58 3346 2000 92.89 126.74 36.22 70.15 3.44 3632 2001 95.14 127.63 37.66 70.40 3.42 3855 2002 100.96 128.45 39.09 70.30 3.39 4125 2003 118.72 129.23 40.53 70.40 3.38 4415 2004 139.07 129.99 41.76 70.92 3.31 4773 2005 153.42 130.76 42.99 72.04 3.24 5142 2006 166.46 131.45 43.90 72.32 3.17 5636 2007 180.17 132.13 44.94 72.53 3.17 6239 2008 192.27 132.80 45.68 72.80 3.16 6782