Year Number
1950 54.454
1951 56.032
1952 57.504
1953 59.034
1954 60.628
1955 62.206
1956 63.357
1957 64.476
1958 65.448
1959 66.152
1960 66.525
1961 67.062
1962 67.135
1963 66.848
1964 66.341
1965 65.677
1966 64.96
1967 64.113
1968 63.174
1969 62.176
1970 61.136
1971 59.853
1972 58.654
1973 57.494
1974 56.319
1975 55.114
1976 54.407
1977 53.625
1978 52.85
1979 52.18
1980 51.654
1981 51.242
1982 50.93
1983 50.736
1984 50.644
1985 50.631
1986 50.876
1987 51.127
1988 51.375
1989 51.604
1990 51.795
1991 52.115
1992 52.367
1993 52.507
1994 52.486
1995 52.301
1996 52.179
1997 51.861
1998 51.426
1999 50.976
2000 50.55
2001 50.106
2002 49.763
2003 49.458
2004 49.108
2005 48.697
2006 48.717
2007 48.649
2008 48.57
2009 48.584
2010 48.734
2011 48.912
2012 49.212
2013 49.671
2014 50.256
2015 50.912
2016 51.536
2017 52.24
2018 52.992
2019 53.758
2020 54.532
2021 55.474
2022 56.355
2023 57.216
2024 58.116
2025 59.076
2026 60.032
2027 61.042
2028 62.041
2029 62.923
2030 63.628
2031 64.131
2032 64.462
2033 64.668
2034 64.835
2035 65.012
2036 65.149
2037 65.296
2038 65.433
2039 65.514
2040 65.513
2041 65.405
2042 65.238
2043 65.058
2044 64.937
2045 64.919
2046 64.958
2047 65.111
2048 65.344
2049 65.594
2050 65.817
2051 65.977
2052 66.13
2053 66.305
2054 66.544
2055 66.869
2056 67.238
2057 67.714
2058 68.232
2059 68.702
2060 69.081
2061 69.313
2062 69.463
2063 69.579
2064 69.72
2065 69.909
2066 70.014
2067 70.18
2068 70.385
2069 70.609
2070 70.857
2071 71.011
2072 71.199
2073 71.425
2074 71.67
2075 71.904
2076 71.956
2077 72.028
2078 72.113
2079 72.227
2080 72.394
2081 72.46
2082 72.586
2083 72.785
2084 73.045
2085 73.341
2086 73.486
2087 73.704
2088 73.962
2089 74.238
2090 74.538
2091 74.693
2092 74.874
2093 75.1
2094 75.377
2095 75.696
2096 75.809
2097 75.983
2098 76.207
2099 76.462
2100 76.743