Year Number
1950 49.145
1951 49.685
1952 50.142
1953 50.711
1954 51.302
1955 51.764
1956 52.007
1957 52.231
1958 52.358
1959 52.361
1960 52.278
1961 52.819
1962 53.041
1963 53.038
1964 52.925
1965 52.761
1966 53.061
1967 53.31
1968 53.528
1969 53.693
1970 53.775
1971 54.119
1972 54.317
1973 54.37
1974 54.254
1975 53.946
1976 53.673
1977 53.287
1978 52.728
1979 51.979
1980 51.098
1981 50.129
1982 49.085
1983 48.078
1984 47.223
1985 46.573
1986 46.337
1987 46.164
1988 46.07
1989 46.076
1990 46.194
1991 46.418
1992 46.765
1993 47.17
1994 47.522
1995 47.745
1996 48.166
1997 48.457
1998 48.615
1999 48.68
2000 48.674
2001 48.448
2002 48.17
2003 47.862
2004 47.553
2005 47.274
2006 47.031
2007 46.872
2008 46.805
2009 46.837
2010 46.977
2011 47.214
2012 47.515
2013 47.907
2014 48.37
2015 48.848
2016 49.429
2017 50.012
2018 50.611
2019 51.244
2020 51.935
2021 52.796
2022 53.693
2023 54.646
2024 55.689
2025 56.836
2026 57.994
2027 59.258
2028 60.59
2029 61.931
2030 63.248
2031 64.484
2032 65.69
2033 66.834
2034 67.87
2035 68.77
2036 69.417
2037 69.935
2038 70.36
2039 70.731
2040 71.081
2041 71.296
2042 71.51
2043 71.748
2044 72.057
2045 72.482
2046 72.887
2047 73.412
2048 74.036
2049 74.705
2050 75.374
2051 75.86
2052 76.353
2053 76.859
2054 77.376
2055 77.899
2056 78.24
2057 78.61
2058 78.986
2059 79.321
2060 79.59
2061 79.64
2062 79.678
2063 79.685
2064 79.657
2065 79.615
2066 79.393
2067 79.172
2068 78.973
2069 78.824
2070 78.733
2071 78.451
2072 78.239
2073 78.112
2074 78.067
2075 78.091
2076 77.937
2077 77.893
2078 77.941
2079 78.069
2080 78.292
2081 78.385
2082 78.583
2083 78.885
2084 79.271
2085 79.72
2086 79.966
2087 80.285
2088 80.661
2089 81.084
2090 81.555
2091 81.805
2092 82.1
2093 82.439
2094 82.821
2095 83.24
2096 83.397
2097 83.594
2098 83.831
2099 84.109
2100 84.433