Year | Value | 2022 | 161,959 | 2021 | 162,341 | 2020 | 163,809 | 2019 | 164,633 | 2018 | 165,146 | 2017 | 165,565 | 2016 | 165,823 | 2015 | 166,589 | 2014 | 167,021 | 2013 | 166,160 | 2012 | 163,894 | 2011 | 159,493 | 2010 | 153,324 | 2009 | 147,115 | 2008 | 141,788 | 2007 | 137,834 | 2006 | 135,921 | 2005 | 135,134 | 2004 | 134,912 | 2003 | 135,207 | 2002 | 134,967 | 2001 | 134,803 | 2000 | 136,216 | 1999 | 138,993 | 1998 | 142,450 | 1997 | 147,158 | 1996 | 152,840 | 1995 | 157,410 | 1994 | 160,698 | 1993 | 163,255 | 1992 | 164,454 | 1991 | 164,436 | 1990 | 164,541 | 1989 | 164,436 | 1988 | 162,854 | 1987 | 160,041 | 1986 | 156,952 | 1985 | 154,248 | 1984 | 152,322 | 1983 | 151,243 | 1982 | 150,806 | 1981 | 150,955 | 1980 | 151,317 | 1979 | 151,321 | 1978 | 151,039 | 1977 | 150,400 | 1976 | 148,698 | 1975 | 146,916 | 1974 | 146,040 | 1973 | 145,773 | 1972 | 146,647 | 1971 | 149,593 | 1970 | 152,167 | 1969 | 152,119 | 1968 | 149,311 | 1967 | 143,155 | 1966 | 133,768 | 1965 | 124,429 | 1964 | 117,178 | 1963 | 111,230 | 1962 | 106,734 | 1961 | 103,819 | 1960 | 101,613 |
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