Year Number
1950 84.916
1951 86.253
1952 88.179
1953 89.873
1954 91.074
1955 91.881
1956 93.745
1957 94.785
1958 95.482
1959 96.249
1960 97.214
1961 98.21
1962 99.437
1963 100.663
1964 101.527
1965 101.877
1966 102.217
1967 102.115
1968 101.717
1969 101.298
1970 101.011
1971 100.975
1972 101.122
1973 101.302
1974 101.25
1975 100.819
1976 100.784
1977 100.057
1978 98.909
1979 97.678
1980 96.48
1981 94.598
1982 93.032
1983 91.535
1984 89.792
1985 87.718
1986 85.395
1987 82.933
1988 80.452
1989 78.155
1990 76.142
1991 74.422
1992 72.834
1993 71.399
1994 70.113
1995 68.964
1996 68.028
1997 67.202
1998 66.426
1999 65.628
2000 64.777
2001 63.938
2002 63.093
2003 62.252
2004 61.447
2005 60.687
2006 59.684
2007 58.727
2008 57.789
2009 56.843
2010 55.887
2011 54.956
2012 54.04
2013 53.168
2014 52.376
2015 51.682
2016 51.139
2017 50.652
2018 50.227
2019 49.864
2020 49.558
2021 49.262
2022 49.035
2023 48.858
2024 48.703
2025 48.555
2026 48.404
2027 48.264
2028 48.149
2029 48.087
2030 48.093
2031 48.122
2032 48.213
2033 48.366
2034 48.578
2035 48.845
2036 49.113
2037 49.439
2038 49.812
2039 50.221
2040 50.662
2041 51.065
2042 51.497
2043 51.964
2044 52.468
2045 53.004
2046 53.472
2047 53.978
2048 54.521
2049 55.103
2050 55.73
2051 56.29
2052 56.896
2053 57.554
2054 58.27
2055 59.044
2056 59.729
2057 60.474
2058 61.279
2059 62.144
2060 63.063
2061 63.859
2062 64.716
2063 65.622
2064 66.56
2065 67.515
2066 68.29
2067 69.096
2068 69.928
2069 70.78
2070 71.651
2071 72.325
2072 73.025
2073 73.762
2074 74.55
2075 75.399
2076 76.047
2077 76.764
2078 77.546
2079 78.378
2080 79.251
2081 79.868
2082 80.537
2083 81.256
2084 82.019
2085 82.818
2086 83.339
2087 83.912
2088 84.532
2089 85.189
2090 85.875
2091 86.263
2092 86.701
2093 87.185
2094 87.706
2095 88.264
2096 88.517
2097 88.82
2098 89.174
2099 89.581
2100 90.043