Year Number
1950 93.913
1951 94.436
1952 93.961
1953 93.377
1954 92.948
1955 92.546
1956 92.169
1957 92.145
1958 92.03
1959 91.451
1960 90.326
1961 90.302
1962 89.48
1963 88.256
1964 87.166
1965 86.438
1966 86.657
1967 87.073
1968 87.571
1969 87.923
1970 88.023
1971 88.723
1972 89.125
1973 89.304
1974 89.369
1975 89.375
1976 90.007
1977 90.462
1978 90.77
1979 90.961
1980 91.055
1981 91.671
1982 92.132
1983 92.431
1984 92.574
1985 92.571
1986 93.464
1987 94.17
1988 94.641
1989 94.751
1990 94.391
1991 97.059
1992 99.493
1993 101.679
1994 103.691
1995 105.534
1996 103.124
1997 100.592
1998 97.971
1999 95.31
2000 92.722
2001 89.319
2002 86.178
2003 83.361
2004 80.913
2005 78.841
2006 78.924
2007 79.138
2008 79.512
2009 80.055
2010 80.703
2011 81.399
2012 82.085
2013 82.681
2014 83.079
2015 83.206
2016 82.435
2017 81.521
2018 80.422
2019 79.109
2020 77.6
2021 76.101
2022 74.413
2023 72.636
2024 70.903
2025 69.285
2026 67.843
2027 66.511
2028 65.273
2029 64.095
2030 62.962
2031 62.012
2032 61.109
2033 60.259
2034 59.475
2035 58.759
2036 58.205
2037 57.69
2038 57.221
2039 56.801
2040 56.428
2041 56.171
2042 55.928
2043 55.702
2044 55.497
2045 55.312
2046 55.197
2047 55.083
2048 54.96
2049 54.817
2050 54.651
2051 54.508
2052 54.346
2053 54.15
2054 53.904
2055 53.604
2056 53.313
2057 52.977
2058 52.616
2059 52.25
2060 51.895
2061 51.595
2062 51.297
2063 51.025
2064 50.808
2065 50.663
2066 50.624
2067 50.635
2068 50.694
2069 50.796
2070 50.935
2071 51.152
2072 51.389
2073 51.635
2074 51.873
2075 52.093
2076 52.319
2077 52.523
2078 52.706
2079 52.872
2080 53.025
2081 53.188
2082 53.332
2083 53.461
2084 53.58
2085 53.695
2086 53.815
2087 53.927
2088 54.04
2089 54.161
2090 54.3
2091 54.448
2092 54.605
2093 54.779
2094 54.978
2095 55.205
2096 55.454
2097 55.725
2098 56.019
2099 56.335
2100 56.672