Year Number
1950 61.421
1951 62.909
1952 63.919
1953 64.951
1954 66.11
1955 67.267
1956 68.179
1957 69.273
1958 70.249
1959 70.852
1960 71.017
1961 71.297
1962 70.959
1963 70.244
1964 69.475
1965 68.786
1966 68.562
1967 68.371
1968 68.138
1969 67.788
1970 67.33
1971 66.614
1972 65.941
1973 65.207
1974 64.283
1975 63.098
1976 62.675
1977 61.849
1978 60.732
1979 59.581
1980 58.577
1981 57.236
1982 56.211
1983 55.374
1984 54.557
1985 53.72
1986 53.31
1987 52.904
1988 52.533
1989 52.302
1990 52.271
1991 52.322
1992 52.444
1993 52.603
1994 52.736
1995 52.796
1996 52.984
1997 53.08
1998 53.042
1999 52.895
2000 52.695
2001 52.207
2002 51.782
2003 51.382
2004 50.974
2005 50.557
2006 50.374
2007 50.241
2008 50.183
2009 50.233
2010 50.404
2011 51.046
2012 51.727
2013 52.455
2014 53.223
2015 54.008
2016 54.579
2017 55.186
2018 55.826
2019 56.478
2020 57.128
2021 57.699
2022 58.304
2023 58.941
2024 59.634
2025 60.409
2026 61.253
2027 62.152
2028 63.082
2029 63.994
2030 64.845
2031 65.465
2032 66.011
2033 66.523
2034 67.063
2035 67.668
2036 68.16
2037 68.727
2038 69.305
2039 69.777
2040 70.066
2041 70.015
2042 69.831
2043 69.567
2044 69.323
2045 69.169
2046 68.948
2047 68.828
2048 68.796
2049 68.811
2050 68.843
2051 68.697
2052 68.595
2053 68.576
2054 68.681
2055 68.919
2056 69.107
2057 69.477
2058 69.95
2059 70.435
2060 70.895
2061 71.174
2062 71.444
2063 71.741
2064 72.08
2065 72.442
2066 72.6
2067 72.818
2068 73.074
2069 73.383
2070 73.792
2071 74.089
2072 74.476
2073 74.974
2074 75.574
2075 76.23
2076 76.63
2077 77.117
2078 77.65
2079 78.195
2080 78.756
2081 79.037
2082 79.334
2083 79.685
2084 80.111
2085 80.599
2086 80.809
2087 81.121
2088 81.499
2089 81.915
2090 82.381
2091 82.59
2092 82.859
2093 83.2
2094 83.621
2095 84.117
2096 84.312
2097 84.579
2098 84.91
2099 85.309
2100 85.777