| Year | Value | | 2024 | 294,621 | | 2023 | 295,124 | | 2022 | 295,082 | | 2021 | 294,257 | | 2020 | 292,410 | | 2019 | 290,259 | | 2018 | 287,980 | | 2017 | 284,887 | | 2016 | 280,918 | | 2015 | 276,332 | | 2014 | 270,937 | | 2013 | 264,663 | | 2012 | 257,802 | | 2011 | 250,550 | | 2010 | 242,790 | | 2009 | 234,777 | | 2008 | 226,783 | | 2007 | 218,957 | | 2006 | 211,486 | | 2005 | 204,844 | | 2004 | 199,544 | | 2003 | 195,423 | | 2002 | 192,726 | | 2001 | 190,985 | | 2000 | 189,036 | | 1999 | 186,822 | | 1998 | 184,782 | | 1997 | 183,128 | | 1996 | 181,745 | | 1995 | 180,428 | | 1994 | 178,962 | | 1993 | 177,059 | | 1992 | 174,405 | | 1991 | 170,659 | | 1990 | 165,731 | | 1989 | 159,977 | | 1988 | 153,803 | | 1987 | 147,508 | | 1986 | 141,407 | | 1985 | 135,677 | | 1984 | 130,230 | | 1983 | 124,941 | | 1982 | 119,810 | | 1981 | 115,076 | | 1980 | 110,768 | | 1979 | 107,039 | | 1978 | 103,923 | | 1977 | 100,920 | | 1976 | 97,943 | | 1975 | 95,187 |
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