Year Number
1950 56.661
1951 55.873
1952 54.567
1953 53.297
1954 52.322
1955 51.681
1956 50.669
1957 50.246
1958 50.25
1959 50.454
1960 50.709
1961 51.078
1962 51.246
1963 51.223
1964 51.103
1965 50.966
1966 51.022
1967 51.025
1968 51.011
1969 51.018
1970 51.066
1971 51.197
1972 51.344
1973 51.479
1974 51.538
1975 51.501
1976 51.815
1977 51.977
1978 52.018
1979 51.971
1980 51.837
1981 51.562
1982 51.254
1983 50.948
1984 50.671
1985 50.459
1986 50.565
1987 50.735
1988 50.947
1989 51.128
1990 51.169
1991 51.734
1992 52.06
1993 52.162
1994 52.123
1995 52.022
1996 51.203
1997 50.456
1998 49.77
1999 49.082
2000 48.374
2001 48.04
2002 47.733
2003 47.424
2004 47.127
2005 46.871
2006 47.053
2007 47.23
2008 47.486
2009 47.899
2010 48.494
2011 49.413
2012 50.334
2013 51.287
2014 52.328
2015 53.486
2016 54.449
2017 55.696
2018 57.033
2019 58.181
2020 59.018
2021 59.875
2022 60.363
2023 60.601
2024 60.812
2025 61.116
2026 61.527
2027 62.023
2028 62.54
2029 62.93
2030 63.107
2031 63.116
2032 62.991
2033 62.817
2034 62.738
2035 62.857
2036 63.231
2037 63.822
2038 64.556
2039 65.322
2040 66.048
2041 66.786
2042 67.482
2043 68.193
2044 68.977
2045 69.852
2046 70.765
2047 71.753
2048 72.819
2049 73.976
2050 75.234
2051 76.538
2052 77.96
2053 79.403
2054 80.705
2055 81.74
2056 82.442
2057 82.939
2058 83.151
2059 83.012
2060 82.519
2061 81.598
2062 80.351
2063 78.962
2064 77.653
2065 76.532
2066 75.436
2067 74.574
2068 73.937
2069 73.524
2070 73.362
2071 73.394
2072 73.729
2073 74.281
2074 74.904
2075 75.487
2076 75.906
2077 76.29
2078 76.678
2079 77.111
2080 77.594
2081 77.988
2082 78.473
2083 78.995
2084 79.492
2085 79.943
2086 80.27
2087 80.608
2088 80.914
2089 81.163
2090 81.366
2091 81.316
2092 81.195
2093 81.052
2094 80.939
2095 80.869
2096 80.468
2097 80.147
2098 79.926
2099 79.787
2100 79.704