Year Number
1950 91.029
1951 91.526
1952 91.602
1953 91.507
1954 91.348
1955 91.136
1956 91.607
1957 91.97
1958 92.213
1959 92.33
1960 92.342
1961 93.186
1962 93.757
1963 94.156
1964 94.503
1965 94.853
1966 96.015
1967 97.02
1968 97.884
1969 98.597
1970 99.161
1971 100.158
1972 100.833
1973 101.275
1974 101.578
1975 101.783
1976 102.52
1977 103.081
1978 103.439
1979 103.528
1980 103.321
1981 103.491
1982 103.183
1983 102.563
1984 101.837
1985 101.101
1986 101.263
1987 101.421
1988 101.451
1989 101.163
1990 100.485
1991 100.901
1992 100.725
1993 100.169
1994 99.523
1995 98.932
1996 98.652
1997 98.39
1998 98.104
1999 97.69
2000 97.125
2001 97.476
2002 97.661
2003 97.754
2004 97.846
2005 97.976
2006 98.125
2007 98.223
2008 98.277
2009 98.261
2010 98.148
2011 97.854
2012 97.386
2013 96.791
2014 96.122
2015 95.402
2016 94.62
2017 93.842
2018 93.023
2019 92.099
2020 91.056
2021 90.191
2022 89.175
2023 88.088
2024 87.029
2025 86.042
2026 85.15
2027 84.31
2028 83.504
2029 82.699
2030 81.881
2031 81.175
2032 80.443
2033 79.704
2034 78.985
2035 78.298
2036 77.728
2037 77.161
2038 76.602
2039 76.058
2040 75.53
2041 75.088
2042 74.649
2043 74.206
2044 73.752
2045 73.285
2046 72.862
2047 72.418
2048 71.961
2049 71.504
2050 71.052
2051 70.653
2052 70.245
2053 69.831
2054 69.41
2055 68.983
2056 68.586
2057 68.18
2058 67.77
2059 67.357
2060 66.948
2061 66.576
2062 66.195
2063 65.816
2064 65.449
2065 65.103
2066 64.793
2067 64.496
2068 64.211
2069 63.936
2070 63.673
2071 63.447
2072 63.222
2073 62.997
2074 62.777
2075 62.564
2076 62.363
2077 62.163
2078 61.968
2079 61.78
2080 61.602
2081 61.444
2082 61.285
2083 61.129
2084 60.983
2085 60.849
2086 60.719
2087 60.598
2088 60.485
2089 60.379
2090 60.28
2091 60.185
2092 60.089
2093 59.999
2094 59.921
2095 59.859
2096 59.793
2097 59.737
2098 59.692
2099 59.658
2100 59.634