Year Number
1950 78.413
1951 79.762
1952 81.308
1953 82.419
1954 82.977
1955 83.15
1956 83.977
1957 84.055
1958 83.86
1959 83.767
1960 83.903
1961 84.802
1962 85.891
1963 87.09
1964 88.231
1965 89.267
1966 91.067
1967 92.686
1968 94.191
1969 95.649
1970 97.075
1971 98.924
1972 100.414
1973 101.623
1974 102.587
1975 103.284
1976 103.934
1977 104.225
1978 104.136
1979 103.59
1980 102.567
1981 100.745
1982 98.509
1983 96.016
1984 93.433
1985 90.85
1986 89.143
1987 87.45
1988 85.669
1989 83.638
1990 81.294
1991 79.174
1992 76.579
1993 73.773
1994 71.093
1995 68.683
1996 66.045
1997 63.872
1998 61.963
1999 60.048
2000 58.04
2001 56.335
2002 54.524
2003 52.774
2004 51.316
2005 50.242
2006 49.71
2007 49.479
2008 49.464
2009 49.48
2010 49.402
2011 50.127
2012 50.751
2013 51.287
2014 51.815
2015 52.378
2016 51.988
2017 51.585
2018 51.133
2019 50.564
2020 49.856
2021 49.011
2022 48.105
2023 47.158
2024 46.213
2025 45.308
2026 44.567
2027 43.842
2028 43.186
2029 42.666
2030 42.314
2031 42.147
2032 42.131
2033 42.257
2034 42.498
2035 42.842
2036 43.311
2037 43.862
2038 44.493
2039 45.2
2040 45.977
2041 46.817
2042 47.688
2043 48.574
2044 49.446
2045 50.283
2046 51.036
2047 51.721
2048 52.345
2049 52.922
2050 53.459
2051 53.911
2052 54.31
2053 54.634
2054 54.853
2055 54.954
2056 54.937
2057 54.81
2058 54.614
2059 54.409
2060 54.233
2061 54.112
2062 54.019
2063 53.972
2064 53.985
2065 54.072
2066 54.286
2067 54.569
2068 54.942
2069 55.426
2070 56.028
2071 56.796
2072 57.675
2073 58.639
2074 59.647
2075 60.668
2076 61.722
2077 62.781
2078 63.828
2079 64.832
2080 65.767
2081 66.602
2082 67.362
2083 68.046
2084 68.663
2085 69.225
2086 69.663
2087 70.045
2088 70.379
2089 70.674
2090 70.933
2091 71.062
2092 71.168
2093 71.262
2094 71.359
2095 71.469
2096 71.497
2097 71.556
2098 71.658
2099 71.81
2100 72.012