Year Number
1950 58.615
1951 58.27
1952 57.475
1953 56.634
1954 56.05
1955 55.823
1956 56.549
1957 57.253
1958 58.132
1959 59.236
1960 60.498
1961 61.802
1962 63.074
1963 64.2
1964 65.019
1965 65.457
1966 65.791
1967 65.672
1968 65.143
1969 64.388
1970 63.548
1971 62.21
1972 61.22
1973 60.422
1974 59.548
1975 58.452
1976 57.704
1977 56.7
1978 55.532
1979 54.433
1980 53.538
1981 52.765
1982 52.165
1983 51.734
1984 51.41
1985 51.159
1986 51.089
1987 51.058
1988 51.076
1989 51.194
1990 51.431
1991 52.135
1992 52.931
1993 53.739
1994 54.396
1995 54.77
1996 54.728
1997 54.387
1998 53.811
1999 53.146
2000 52.485
2001 51.994
2002 51.602
2003 51.126
2004 50.333
2005 49.143
2006 48.507
2007 47.564
2008 46.579
2009 45.844
2010 45.446
2011 45.544
2012 45.612
2013 45.629
2014 45.621
2015 45.673
2016 46.418
2017 47.304
2018 48.332
2019 49.44
2020 50.541
2021 51.468
2022 52.504
2023 53.518
2024 54.361
2025 54.997
2026 55.766
2027 56.276
2028 56.591
2029 56.817
2030 56.991
2031 57.13
2032 57.228
2033 57.304
2034 57.37
2035 57.462
2036 57.611
2037 57.826
2038 58.118
2039 58.504
2040 58.997
2041 59.645
2042 60.397
2043 61.252
2044 62.197
2045 63.216
2046 64.356
2047 65.522
2048 66.751
2049 68.094
2050 69.57
2051 71.133
2052 72.819
2053 74.549
2054 76.195
2055 77.66
2056 78.908
2057 79.995
2058 80.861
2059 81.465
2060 81.792
2061 81.823
2062 81.615
2063 81.161
2064 80.456
2065 79.508
2066 78.272
2067 76.856
2068 75.408
2069 74.124
2070 73.129
2071 72.371
2072 71.917
2073 71.764
2074 71.902
2075 72.324
2076 73.006
2077 74.015
2078 75.262
2079 76.569
2080 77.79
2081 78.86
2082 79.865
2083 80.783
2084 81.619
2085 82.383
2086 82.991
2087 83.55
2088 84.034
2089 84.42
2090 84.696
2091 84.725
2092 84.699
2093 84.597
2094 84.429
2095 84.219
2096 83.748
2097 83.235
2098 82.727
2099 82.31
2100 82.024