Year Number
1950 88.991
1951 89.335
1952 89.603
1953 89.899
1954 90.152
1955 90.296
1956 90.733
1957 91.093
1958 91.382
1959 91.62
1960 91.763
1961 88.346
1962 85.44
1963 83.164
1964 81.339
1965 79.628
1966 79.485
1967 78.638
1968 77.476
1969 76.379
1970 75.527
1971 73.378
1972 71.291
1973 69.428
1974 67.801
1975 66.354
1976 65.98
1977 65.832
1978 65.695
1979 65.473
1980 65.173
1981 64.71
1982 64.215
1983 63.595
1984 62.839
1985 61.978
1986 61.196
1987 60.42
1988 59.681
1989 59.029
1990 58.478
1991 57.795
1992 57.192
1993 56.664
1994 56.151
1995 55.62
1996 55.313
1997 54.901
1998 54.409
1999 53.94
2000 53.56
2001 53.316
2002 53.104
2003 52.892
2004 52.624
2005 52.286
2006 51.972
2007 51.624
2008 51.2
2009 50.733
2010 50.301
2011 50.207
2012 50.162
2013 50.13
2014 50.08
2015 50.024
2016 50.157
2017 50.287
2018 50.415
2019 50.562
2020 50.759
2021 51.064
2022 51.435
2023 51.832
2024 52.223
2025 52.612
2026 53.067
2027 53.525
2028 53.976
2029 54.428
2030 54.903
2031 55.423
2032 55.968
2033 56.513
2034 57.045
2035 57.575
2036 58.108
2037 58.641
2038 59.181
2039 59.75
2040 60.371
2041 61.037
2042 61.777
2043 62.549
2044 63.322
2045 64.105
2046 64.902
2047 65.72
2048 66.55
2049 67.398
2050 68.28
2051 69.141
2052 70.043
2053 70.976
2054 71.954
2055 73.01
2056 74.072
2057 75.227
2058 76.434
2059 77.656
2060 78.885
2061 80.025
2062 81.189
2063 82.329
2064 83.41
2065 84.434
2066 85.269
2067 86.049
2068 86.769
2069 87.447
2070 88.11
2071 88.59
2072 89.081
2073 89.558
2074 90.023
2075 90.509
2076 90.852
2077 91.25
2078 91.669
2079 92.084
2080 92.504
2081 92.723
2082 92.967
2083 93.225
2084 93.497
2085 93.788
2086 93.878
2087 94.033
2088 94.207
2089 94.373
2090 94.554
2091 94.548
2092 94.592
2093 94.662
2094 94.75
2095 94.874
2096 94.819
2097 94.814
2098 94.832
2099 94.875
2100 94.967