Year Number
1950 63.079
1951 63.437
1952 63.171
1953 63.203
1954 63.955
1955 65.489
1956 67.878
1957 70.82
1958 74.124
1959 77.534
1960 80.887
1961 84.624
1962 88.219
1963 91.504
1964 94.248
1965 96.273
1966 98.344
1967 99.335
1968 99.474
1969 99.156
1970 98.63
1971 97.33
1972 96.218
1973 95.145
1974 93.796
1975 92.038
1976 90.71
1977 88.981
1978 87.094
1979 85.344
1980 83.835
1981 82.643
1982 81.692
1983 80.974
1984 80.395
1985 79.884
1986 79.695
1987 79.547
1988 79.457
1989 79.423
1990 79.408
1991 79.672
1992 79.624
1993 79.294
1994 78.628
1995 77.543
1996 76.317
1997 74.602
1998 72.548
1999 70.407
2000 68.352
2001 66.224
2002 64.586
2003 63.124
2004 61.429
2005 59.367
2006 57.734
2007 55.566
2008 53.264
2009 51.352
2010 50.043
2011 48.972
2012 48.457
2013 48.299
2014 48.162
2015 47.883
2016 47.818
2017 47.591
2018 47.274
2019 47.006
2020 46.848
2021 46.816
2022 46.838
2023 46.874
2024 46.859
2025 46.762
2026 46.7
2027 46.566
2028 46.359
2029 46.087
2030 45.761
2031 45.466
2032 45.126
2033 44.758
2034 44.391
2035 44.047
2036 43.838
2037 43.638
2038 43.463
2039 43.324
2040 43.23
2041 43.288
2042 43.376
2043 43.496
2044 43.649
2045 43.832
2046 44.169
2047 44.506
2048 44.865
2049 45.274
2050 45.748
2051 46.394
2052 47.067
2053 47.749
2054 48.418
2055 49.056
2056 49.799
2057 50.504
2058 51.121
2059 51.58
2060 51.847
2061 52.063
2062 52.083
2063 51.979
2064 51.853
2065 51.767
2066 51.861
2067 51.973
2068 52.09
2069 52.185
2070 52.248
2071 52.473
2072 52.657
2073 52.823
2074 52.998
2075 53.2
2076 53.633
2077 54.065
2078 54.492
2079 54.899
2080 55.275
2081 55.832
2082 56.342
2083 56.804
2084 57.205
2085 57.537
2086 58.012
2087 58.419
2088 58.749
2089 58.996
2090 59.162
2091 59.444
2092 59.637
2093 59.757
2094 59.823
2095 59.847
2096 59.986
2097 60.082
2098 60.146
2099 60.183
2100 60.2