Year Number
1950 83.875
1951 84.802
1952 85.361
1953 85.506
1954 85.293
1955 84.824
1956 85.536
1957 85.912
1958 86.057
1959 86.018
1960 85.778
1961 86.523
1962 86.945
1963 87.147
1964 87.339
1965 87.757
1966 88.682
1967 89.408
1968 90.052
1969 90.57
1970 90.822
1971 91.964
1972 92.931
1973 93.67
1974 94.172
1975 94.459
1976 95.504
1977 96.226
1978 96.697
1979 97.032
1980 97.342
1981 97.99
1982 98.338
1983 98.474
1984 98.411
1985 98.119
1986 98.399
1987 98.41
1988 98.153
1989 97.627
1990 96.846
1991 96.986
1992 96.784
1993 96.305
1994 95.641
1995 94.849
1996 93.903
1997 92.854
1998 91.728
1999 90.549
2000 89.358
2001 88.523
2002 87.661
2003 86.799
2004 85.969
2005 85.198
2006 84.975
2007 84.683
2008 84.356
2009 84.013
2010 83.648
2011 83.508
2012 83.263
2013 82.908
2014 82.431
2015 81.831
2016 81.295
2017 80.648
2018 79.884
2019 79.002
2020 78.016
2021 77.179
2022 76.221
2023 75.188
2024 74.136
2025 73.104
2026 72.253
2027 71.402
2028 70.558
2029 69.718
2030 68.889
2031 68.247
2032 67.589
2033 66.932
2034 66.295
2035 65.69
2036 65.246
2037 64.801
2038 64.359
2039 63.921
2040 63.486
2041 63.17
2042 62.832
2043 62.477
2044 62.111
2045 61.739
2046 61.447
2047 61.131
2048 60.794
2049 60.441
2050 60.076
2051 59.78
2052 59.46
2053 59.118
2054 58.758
2055 58.385
2056 58.078
2057 57.747
2058 57.401
2059 57.05
2060 56.702
2061 56.422
2062 56.134
2063 55.848
2064 55.574
2065 55.322
2066 55.16
2067 54.999
2068 54.846
2069 54.706
2070 54.585
2071 54.536
2072 54.49
2073 54.444
2074 54.396
2075 54.343
2076 54.335
2077 54.308
2078 54.269
2079 54.227
2080 54.187
2081 54.179
2082 54.162
2083 54.141
2084 54.115
2085 54.086
2086 54.089
2087 54.077
2088 54.059
2089 54.046
2090 54.046
2091 54.074
2092 54.104
2093 54.139
2094 54.181
2095 54.232
2096 54.312
2097 54.392
2098 54.475
2099 54.567
2100 54.673