Year Number
1950 80.142
1951 79.984
1952 80.052
1953 79.797
1954 79.144
1955 78.259
1956 78.767
1957 78.653
1958 78.291
1959 78.032
1960 78.01
1961 78.894
1962 79.867
1963 80.829
1964 81.576
1965 82.025
1966 83.154
1967 83.913
1968 84.384
1969 84.691
1970 84.913
1971 85.844
1972 86.565
1973 87.114
1974 87.523
1975 87.821
1976 88.782
1977 89.465
1978 89.942
1979 90.322
1980 90.685
1981 91.582
1982 92.396
1983 93.057
1984 93.323
1985 92.919
1986 93.575
1987 93.843
1988 93.669
1989 93.124
1990 92.333
1991 91.984
1992 91.114
1993 89.969
1994 89.031
1995 88.872
1996 88.256
1997 87.747
1998 87.447
1999 87.087
2000 86.32
2001 86.65
2002 86.728
2003 86.551
2004 86.346
2005 86.355
2006 86.636
2007 86.868
2008 87.05
2009 87.022
2010 86.634
2011 86.277
2012 85.701
2013 84.9
2014 83.932
2015 82.873
2016 81.942
2017 80.936
2018 79.874
2019 78.772
2020 77.652
2021 76.762
2022 75.815
2023 74.851
2024 73.915
2025 73.028
2026 72.33
2027 71.65
2028 70.984
2029 70.316
2030 69.641
2031 69.11
2032 68.547
2033 67.962
2034 67.367
2035 66.769
2036 66.285
2037 65.769
2038 65.229
2039 64.673
2040 64.109
2041 63.632
2042 63.132
2043 62.614
2044 62.084
2045 61.548
2046 61.108
2047 60.641
2048 60.157
2049 59.664
2050 59.172
2051 58.761
2052 58.341
2053 57.914
2054 57.476
2055 57.028
2056 56.663
2057 56.275
2058 55.883
2059 55.511
2060 55.171
2061 54.941
2062 54.719
2063 54.509
2064 54.314
2065 54.136
2066 54.043
2067 53.949
2068 53.852
2069 53.751
2070 53.647
2071 53.608
2072 53.552
2073 53.48
2074 53.396
2075 53.301
2076 53.257
2077 53.189
2078 53.105
2079 53.019
2080 52.939
2081 52.91
2082 52.872
2083 52.831
2084 52.79
2085 52.753
2086 52.773
2087 52.781
2088 52.785
2089 52.794
2090 52.812
2091 52.885
2092 52.952
2093 53.019
2094 53.087
2095 53.16
2096 53.286
2097 53.404
2098 53.517
2099 53.63
2100 53.745