Year Number
1950 55.523
1951 55.871
1952 55.88
1953 55.959
1954 56.1
1955 56.206
1956 56.531
1957 56.906
1958 57.249
1959 57.435
1960 57.373
1961 56.937
1962 56.558
1963 56.069
1964 55.327
1965 54.328
1966 53.762
1967 52.813
1968 51.73
1969 50.856
1970 50.351
1971 50.187
1972 50.318
1973 50.643
1974 50.96
1975 51.155
1976 51.412
1977 51.582
1978 51.641
1979 51.559
1980 51.319
1981 51.063
1982 50.607
1983 50.075
1984 49.639
1985 49.391
1986 49.374
1987 49.522
1988 49.751
1989 49.947
1990 50.057
1991 50.313
1992 50.416
1993 50.418
1994 50.4
1995 50.39
1996 50.542
1997 50.937
1998 51.495
1999 52.062
2000 52.524
2001 52.593
2002 52.374
2003 51.912
2004 51.305
2005 50.628
2006 49.816
2007 49.029
2008 48.364
2009 47.938
2010 47.823
2011 47.998
2012 48.378
2013 48.9
2014 49.49
2015 50.111
2016 50.951
2017 51.787
2018 52.593
2019 53.293
2020 53.842
2021 54.389
2022 54.763
2023 55.019
2024 55.229
2025 55.438
2026 55.767
2027 56.086
2028 56.395
2029 56.689
2030 56.969
2031 57.367
2032 57.761
2033 58.145
2034 58.526
2035 58.918
2036 59.456
2037 59.978
2038 60.493
2039 61.009
2040 61.516
2041 62.138
2042 62.766
2043 63.368
2044 63.889
2045 64.296
2046 64.742
2047 65.098
2048 65.405
2049 65.743
2050 66.17
2051 66.792
2052 67.504
2053 68.271
2054 69.02
2055 69.699
2056 70.347
2057 70.93
2058 71.469
2059 72.004
2060 72.559
2061 73.148
2062 73.756
2063 74.365
2064 74.946
2065 75.474
2066 75.967
2067 76.436
2068 76.861
2069 77.207
2070 77.45
2071 77.59
2072 77.664
2073 77.679
2074 77.662
2075 77.644
2076 77.593
2077 77.557
2078 77.555
2079 77.593
2080 77.656
2081 77.667
2082 77.754
2083 77.891
2084 78.05
2085 78.229
2086 78.367
2087 78.551
2088 78.784
2089 79.06
2090 79.363
2091 79.565
2092 79.826
2093 80.127
2094 80.447
2095 80.775
2096 80.968
2097 81.204
2098 81.473
2099 81.757
2100 82.041