Year Number
1950 63.025
1951 65.091
1952 67.605
1953 69.499
1954 70.546
1955 71.067
1956 73.858
1957 75.457
1958 76.753
1959 78.565
1960 81.072
1961 83.598
1962 86.971
1963 90.398
1964 92.75
1965 93.592
1966 96.046
1967 97.27
1968 97.718
1969 98.025
1970 98.348
1971 96.704
1972 95.047
1973 93.396
1974 91.572
1975 89.532
1976 88.16
1977 86.562
1978 84.891
1979 83.22
1980 81.522
1981 79.476
1982 77.542
1983 75.758
1984 74.101
1985 72.575
1986 72.935
1987 73.215
1988 73.462
1989 73.742
1990 73.997
1991 71.014
1992 68.387
1993 66.101
1994 64.033
1995 62.105
1996 61.359
1997 60.397
1998 59.277
1999 58.168
2000 57.184
2001 54.458
2002 52.232
2003 50.409
2004 48.757
2005 47.083
2006 46.511
2007 45.698
2008 44.663
2009 43.55
2010 42.524
2011 42.584
2012 42.581
2013 42.696
2014 43.014
2015 43.522
2016 44.189
2017 44.968
2018 45.796
2019 46.581
2020 47.27
2021 47.78
2022 48.307
2023 48.783
2024 49.147
2025 49.395
2026 49.744
2027 49.961
2028 50.111
2029 50.303
2030 50.592
2031 51.013
2032 51.519
2033 52.126
2034 52.797
2035 53.538
2036 54.377
2037 55.284
2038 56.233
2039 57.212
2040 58.205
2041 59.202
2042 60.171
2043 61.133
2044 62.076
2045 63.021
2046 63.9
2047 64.76
2048 65.554
2049 66.249
2050 66.822
2051 67.247
2052 67.56
2053 67.77
2054 67.924
2055 68.024
2056 68.084
2057 68.117
2058 68.099
2059 67.977
2060 67.747
2061 67.418
2062 67.017
2063 66.565
2064 66.103
2065 65.65
2066 65.208
2067 64.792
2068 64.454
2069 64.26
2070 64.245
2071 64.404
2072 64.764
2073 65.29
2074 65.954
2075 66.739
2076 67.593
2077 68.591
2078 69.662
2079 70.692
2080 71.627
2081 72.383
2082 73.047
2083 73.636
2084 74.158
2085 74.631
2086 74.925
2087 75.208
2088 75.451
2089 75.664
2090 75.862
2091 75.91
2092 75.964
2093 76.045
2094 76.182
2095 76.373
2096 76.419
2097 76.52
2098 76.703
2099 76.965
2100 77.287