Year Years
1950 69.77
1951 69.91
1952 70.185
1953 70.45
1954 70.705
1955 70.951
1956 71.187
1957 71.414
1958 71.631
1959 71.839
1960 72.038
1961 72.229
1962 72.413
1963 72.591
1964 72.764
1965 72.934
1966 73.101
1967 73.268
1968 73.434
1969 73.602
1970 73.773
1971 73.948
1972 74.128
1973 74.312
1974 74.501
1975 74.697
1976 74.899
1977 75.107
1978 75.32
1979 75.541
1980 75.77
1981 76.01
1982 76.261
1983 76.522
1984 76.791
1985 77.066
1986 77.343
1987 77.618
1988 77.889
1989 78.154
1990 78.413
1991 78.668
1992 78.919
1993 79.171
1994 79.423
1995 79.676
1996 79.93
1997 80.186
1998 80.441
1999 80.697
2000 80.952
2001 81.208
2002 81.462
2003 81.715
2004 81.963
2005 82.205
2006 82.438
2007 82.661
2008 82.873
2009 83.072
2010 83.257
2011 83.428
2012 83.586
2013 83.734
2014 83.873
2015 84.005
2016 84.133
2017 84.258
2018 84.382
2019 84.506
2020 84.632
2021 84.759
2022 84.887
2023 85.015
2024 85.144
2025 85.272
2026 85.399
2027 85.526
2028 85.652
2029 85.777
2030 85.902
2031 86.025
2032 86.149
2033 86.273
2034 86.396
2035 86.52
2036 86.644
2037 86.768
2038 86.892
2039 87.016
2040 87.14
2041 87.264
2042 87.389
2043 87.513
2044 87.637
2045 87.762
2046 87.885
2047 88.008
2048 88.13
2049 88.251
2050 88.372
2051 88.491
2052 88.611
2053 88.731
2054 88.85
2055 88.97
2056 89.09
2057 89.21
2058 89.329
2059 89.449
2060 89.569
2061 89.69
2062 89.81
2063 89.932
2064 90.053
2065 90.175
2066 90.297
2067 90.419
2068 90.54
2069 90.661
2070 90.781
2071 90.901
2072 91.02
2073 91.139
2074 91.257
2075 91.375
2076 91.493
2077 91.612
2078 91.731
2079 91.851
2080 91.971
2081 92.09
2082 92.209
2083 92.327
2084 92.443
2085 92.56
2086 92.677
2087 92.794
2088 92.912
2089 93.031
2090 93.15
2091 93.27
2092 93.389
2093 93.508
2094 93.626
2095 93.744
2096 93.859
2097 93.974
2098 94.088
2099 94.2