Year Years
1950 68.38
1951 68.541
1952 68.866
1953 69.2
1954 69.544
1955 69.896
1956 70.255
1957 70.62
1958 70.984
1959 71.342
1960 71.685
1961 72.004
1962 72.29
1963 72.538
1964 72.748
1965 72.92
1966 73.057
1967 73.17
1968 73.273
1969 73.376
1970 73.492
1971 73.633
1972 73.804
1973 74.005
1974 74.236
1975 74.491
1976 74.757
1977 75.024
1978 75.283
1979 75.534
1980 75.785
1981 76.046
1982 76.33
1983 76.639
1984 76.971
1985 77.313
1986 77.649
1987 77.963
1988 78.246
1989 78.494
1990 78.71
1991 78.903
1992 79.086
1993 79.273
1994 79.468
1995 79.675
1996 79.896
1997 80.125
1998 80.358
1999 80.592
2000 80.82
2001 81.036
2002 81.236
2003 81.421
2004 81.593
2005 81.761
2006 81.937
2007 82.13
2008 82.343
2009 82.576
2010 82.82
2011 83.063
2012 83.294
2013 83.501
2014 83.683
2015 83.84
2016 83.977
2017 84.103
2018 84.227
2019 84.352
2020 84.48
2021 84.612
2022 84.744
2023 84.876
2024 85.007
2025 85.137
2026 85.267
2027 85.397
2028 85.526
2029 85.654
2030 85.782
2031 85.91
2032 86.036
2033 86.162
2034 86.287
2035 86.412
2036 86.536
2037 86.659
2038 86.783
2039 86.907
2040 87.031
2041 87.155
2042 87.278
2043 87.401
2044 87.524
2045 87.646
2046 87.768
2047 87.89
2048 88.012
2049 88.135
2050 88.257
2051 88.378
2052 88.499
2053 88.618
2054 88.737
2055 88.856
2056 88.974
2057 89.093
2058 89.212
2059 89.331
2060 89.451
2061 89.57
2062 89.689
2063 89.807
2064 89.924
2065 90.041
2066 90.157
2067 90.273
2068 90.39
2069 90.507
2070 90.624
2071 90.742
2072 90.861
2073 90.979
2074 91.098
2075 91.216
2076 91.334
2077 91.451
2078 91.568
2079 91.685
2080 91.801
2081 91.917
2082 92.033
2083 92.149
2084 92.265
2085 92.381
2086 92.497
2087 92.612
2088 92.727
2089 92.842
2090 92.956
2091 93.07
2092 93.184
2093 93.297
2094 93.411
2095 93.525
2096 93.639
2097 93.753
2098 93.867
2099 93.981