Year Number
1950 71.604
1951 72.784
1952 74.106
1953 74.94
1954 75.101
1955 74.688
1956 76.087
1957 76.483
1958 76.314
1959 76.006
1960 75.734
1961 76.75
1962 77.687
1963 78.447
1964 78.808
1965 78.686
1966 79.99
1967 80.658
1968 80.855
1969 80.823
1970 80.706
1971 81.994
1972 82.941
1973 83.633
1974 84.112
1975 84.39
1976 86.13
1977 87.471
1978 88.486
1979 89.249
1980 89.801
1981 91.523
1982 92.886
1983 93.921
1984 94.624
1985 94.979
1986 97.078
1987 98.739
1988 100.031
1989 101.067
1990 101.918
1991 102.19
1992 102.172
1993 101.924
1994 101.46
1995 100.798
1996 100.896
1997 100.648
1998 100.185
1999 99.647
2000 99.103
2001 99.106
2002 98.963
2003 98.722
2004 98.423
2005 98.102
2006 98.66
2007 99.05
2008 99.291
2009 99.363
2010 99.243
2011 99.984
2012 100.358
2013 100.458
2014 100.387
2015 100.184
2016 99.826
2017 99.347
2018 98.695
2019 97.808
2020 96.685
2021 95.653
2022 94.439
2023 93.098
2024 91.712
2025 90.334
2026 89.229
2027 88.083
2028 86.933
2029 85.813
2030 84.739
2031 83.891
2032 83.045
2033 82.205
2034 81.365
2035 80.523
2036 79.818
2037 79.082
2038 78.314
2039 77.516
2040 76.691
2041 75.943
2042 75.153
2043 74.325
2044 73.462
2045 72.568
2046 71.736
2047 70.866
2048 69.968
2049 69.052
2050 68.129
2051 67.256
2052 66.378
2053 65.5
2054 64.632
2055 63.781
2056 63.008
2057 62.245
2058 61.497
2059 60.774
2060 60.081
2061 59.467
2062 58.872
2063 58.302
2064 57.763
2065 57.26
2066 56.828
2067 56.42
2068 56.04
2069 55.695
2070 55.389
2071 55.146
2072 54.928
2073 54.732
2074 54.553
2075 54.388
2076 54.249
2077 54.117
2078 53.991
2079 53.874
2080 53.768
2081 53.67
2082 53.574
2083 53.486
2084 53.416
2085 53.368
2086 53.327
2087 53.304
2088 53.302
2089 53.32
2090 53.36
2091 53.411
2092 53.474
2093 53.553
2094 53.66
2095 53.798
2096 53.933
2097 54.097
2098 54.292
2099 54.513
2100 54.754