| Year | Value | | 2024 | 115,831 | | 2023 | 121,923 | | 2022 | 127,549 | | 2021 | 133,036 | | 2020 | 138,772 | | 2019 | 143,675 | | 2018 | 147,055 | | 2017 | 147,570 | | 2016 | 145,823 | | 2015 | 143,041 | | 2014 | 140,030 | | 2013 | 138,310 | | 2012 | 137,909 | | 2011 | 137,026 | | 2010 | 134,898 | | 2009 | 130,509 | | 2008 | 125,735 | | 2007 | 122,254 | | 2006 | 120,869 | | 2005 | 120,675 | | 2004 | 121,278 | | 2003 | 122,789 | | 2002 | 125,072 | | 2001 | 128,195 | | 2000 | 132,987 | | 1999 | 138,788 | | 1998 | 145,239 | | 1997 | 153,783 | | 1996 | 166,434 | | 1995 | 182,781 | | 1994 | 200,662 | | 1993 | 211,618 | | 1992 | 215,856 | | 1991 | 219,902 | | 1990 | 222,078 | | 1989 | 225,490 | | 1988 | 227,760 | | 1987 | 226,186 | | 1986 | 223,526 | | 1985 | 219,954 | | 1984 | 215,914 | | 1983 | 211,412 | | 1982 | 206,612 | | 1981 | 202,217 | | 1980 | 198,233 | | 1979 | 195,138 | | 1978 | 193,143 | | 1977 | 191,943 | | 1976 | 191,090 | | 1975 | 190,268 |
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