Year Number
1950 77.606
1951 79.71
1952 81.571
1953 83.426
1954 85.36
1955 87.378
1956 90.389
1957 93.273
1958 95.992
1959 98.422
1960 100.464
1961 102.889
1962 104.908
1963 106.491
1964 107.618
1965 108.313
1966 109.523
1967 110.163
1968 110.413
1969 110.502
1970 110.559
1971 111.183
1972 111.687
1973 112.068
1974 112.282
1975 112.313
1976 112.851
1977 113.058
1978 113.041
1979 112.924
1980 112.766
1981 112.942
1982 112.985
1983 112.863
1984 112.508
1985 111.889
1986 111.535
1987 110.842
1988 109.842
1989 108.54
1990 106.932
1991 105.399
1992 103.432
1993 101.194
1994 98.881
1995 96.597
1996 95.01
1997 93.571
1998 92.163
1999 90.659
2000 89.06
2001 88.053
2002 86.924
2003 85.794
2004 84.812
2005 84.034
2006 83.652
2007 83.33
2008 83.086
2009 82.894
2010 82.715
2011 82.471
2012 82.196
2013 81.863
2014 81.428
2015 80.869
2016 80.26
2017 79.535
2018 78.693
2019 77.748
2020 76.719
2021 75.783
2022 74.76
2023 73.68
2024 72.584
2025 71.502
2026 70.562
2027 69.627
2028 68.708
2029 67.81
2030 66.939
2031 66.213
2032 65.497
2033 64.804
2034 64.149
2035 63.54
2036 63.054
2037 62.588
2038 62.147
2039 61.733
2040 61.348
2041 61.05
2042 60.762
2043 60.486
2044 60.225
2045 59.98
2046 59.798
2047 59.612
2048 59.424
2049 59.237
2050 59.051
2051 58.897
2052 58.739
2053 58.565
2054 58.357
2055 58.109
2056 57.854
2057 57.56
2058 57.243
2059 56.925
2060 56.62
2061 56.342
2062 56.067
2063 55.807
2064 55.575
2065 55.383
2066 55.237
2067 55.118
2068 55.026
2069 54.958
2070 54.916
2071 54.908
2072 54.915
2073 54.933
2074 54.96
2075 54.992
2076 55.034
2077 55.072
2078 55.111
2079 55.151
2080 55.195
2081 55.23
2082 55.268
2083 55.309
2084 55.353
2085 55.403
2086 55.444
2087 55.486
2088 55.536
2089 55.604
2090 55.696
2091 55.775
2092 55.873
2093 55.99
2094 56.129
2095 56.291
2096 56.437
2097 56.602
2098 56.79
2099 56.998
2100 57.228