Year Number
1950 87.391
1951 86.811
1952 87.443
1953 88.777
1954 90.068
1955 90.452
1956 90.506
1957 89.263
1958 87.325
1959 85.979
1960 86.383
1961 84.4
1962 83.491
1963 83.543
1964 83.468
1965 82.282
1966 79.274
1967 75.597
1968 71.616
1969 68.173
1970 66.006
1971 68.528
1972 72.266
1973 76.891
1974 81.042
1975 83.241
1976 84.378
1977 82.639
1978 78.394
1979 73.125
1980 68.187
1981 65.575
1982 64.107
1983 63.838
1984 63.927
1985 63.426
1986 63.412
1987 61.8
1988 58.923
1989 55.876
1990 53.547
1991 52.099
1992 51.85
1993 52.574
1994 53.383
1995 53.559
1996 54.72
1997 54.731
1998 53.947
1999 53.117
2000 52.647
2001 51.034
2002 49.956
2003 49.44
2004 49.249
2005 49.189
2006 49.502
2007 49.912
2008 50.457
2009 51.256
2010 52.384
2011 53.954
2012 55.685
2013 57.535
2014 59.402
2015 61.198
2016 62.493
2017 63.693
2018 64.815
2019 65.936
2020 67.106
2021 68.206
2022 69.354
2023 70.528
2024 71.687
2025 72.797
2026 73.729
2027 74.615
2028 75.477
2029 76.354
2030 77.285
2031 78.075
2032 78.889
2033 79.716
2034 80.502
2035 81.19
2036 81.559
2037 81.847
2038 82.065
2039 82.218
2040 82.303
2041 82.103
2042 81.875
2043 81.6
2044 81.277
2045 80.917
2046 80.335
2047 79.772
2048 79.215
2049 78.634
2050 77.968
2051 76.963
2052 75.929
2053 74.955
2054 74.217
2055 73.816
2056 73.564
2057 73.685
2058 74.094
2059 74.602
2060 75.079
2061 75.313
2062 75.582
2063 75.877
2064 76.235
2065 76.697
2066 77.005
2067 77.42
2068 77.944
2069 78.617
2070 79.451
2071 80.13
2072 80.987
2073 81.993
2074 83.098
2075 84.252
2076 85.156
2077 86.158
2078 87.192
2079 88.231
2080 89.296
2081 90.001
2082 90.691
2083 91.452
2084 92.324
2085 93.231
2086 93.722
2087 94.35
2088 95.017
2089 95.648
2090 96.315
2091 96.694
2092 97.128
2093 97.679
2094 98.385
2095 99.209
2096 99.632
2097 100.211
2098 100.857
2099 101.549
2100 102.264