Year Number
1950 72.783
1951 75.259
1952 78.047
1953 80.379
1954 82.109
1955 83.279
1956 86.084
1957 88.029
1958 89.514
1959 90.796
1960 92.106
1961 94.02
1962 95.997
1963 97.85
1964 99.263
1965 100.164
1966 102.105
1967 103.64
1968 104.967
1969 106.188
1970 107.517
1971 109.178
1972 110.754
1973 112.306
1974 113.733
1975 114.831
1976 115.563
1977 116.063
1978 116.044
1979 115.43
1980 114.37
1981 113.986
1982 112.753
1983 111.202
1984 109.798
1985 108.683
1986 108.176
1987 107.693
1988 107.044
1989 105.894
1990 104.175
1991 103.158
1992 101.144
1993 98.692
1994 96.376
1995 94.428
1996 92.469
1997 91.387
1998 90.699
1999 89.82
2000 88.564
2001 87.899
2002 86.742
2003 85.39
2004 84.35
2005 83.875
2006 84.041
2007 84.741
2008 85.644
2009 86.292
2010 86.465
2011 86.597
2012 86.149
2013 85.259
2014 84.242
2015 83.272
2016 81.689
2017 80.38
2018 79.145
2019 77.722
2020 76.038
2021 74.372
2022 72.54
2023 70.677
2024 68.974
2025 67.525
2026 66.307
2027 65.272
2028 64.408
2029 63.672
2030 63.033
2031 62.491
2032 62.04
2033 61.674
2034 61.392
2035 61.179
2036 61.003
2037 60.873
2038 60.782
2039 60.713
2040 60.659
2041 60.57
2042 60.491
2043 60.4
2044 60.279
2045 60.11
2046 59.844
2047 59.541
2048 59.211
2049 58.871
2050 58.534
2051 58.136
2052 57.759
2053 57.395
2054 57.034
2055 56.67
2056 56.246
2057 55.833
2058 55.467
2059 55.2
2060 55.058
2061 54.951
2062 54.97
2063 55.095
2064 55.296
2065 55.549
2066 55.762
2067 56.03
2068 56.365
2069 56.789
2070 57.31
2071 57.808
2072 58.404
2073 59.064
2074 59.733
2075 60.384
2076 60.895
2077 61.39
2078 61.882
2079 62.388
2080 62.918
2081 63.303
2082 63.716
2083 64.151
2084 64.617
2085 65.125
2086 65.489
2087 65.889
2088 66.349
2089 66.883
2090 67.476
2091 67.901
2092 68.406
2093 68.976
2094 69.597
2095 70.271
2096 70.777
2097 71.34
2098 71.972
2099 72.677
2100 73.453