| Year | Value | | 2024 | 389,261 | | 2023 | 359,301 | | 2022 | 328,879 | | 2021 | 306,804 | | 2020 | 292,163 | | 2019 | 282,225 | | 2018 | 279,651 | | 2017 | 280,794 | | 2016 | 280,706 | | 2015 | 279,537 | | 2014 | 277,620 | | 2013 | 274,279 | | 2012 | 271,419 | | 2011 | 269,769 | | 2010 | 267,352 | | 2009 | 263,777 | | 2008 | 260,038 | | 2007 | 256,251 | | 2006 | 252,401 | | 2005 | 249,142 | | 2004 | 245,681 | | 2003 | 240,398 | | 2002 | 234,394 | | 2001 | 228,123 | | 2000 | 220,321 | | 1999 | 211,436 | | 1998 | 203,069 | | 1997 | 195,765 | | 1996 | 189,976 | | 1995 | 185,972 | | 1994 | 182,908 | | 1993 | 180,389 | | 1992 | 178,109 | | 1991 | 175,474 | | 1990 | 172,615 | | 1989 | 169,690 | | 1988 | 166,684 | | 1987 | 163,897 | | 1986 | 161,680 | | 1985 | 160,028 | | 1984 | 158,954 | | 1983 | 158,292 | | 1982 | 157,564 | | 1981 | 156,549 | | 1980 | 155,101 | | 1979 | 153,401 | | 1978 | 151,973 | | 1977 | 150,850 | | 1976 | 149,625 | | 1975 | 147,912 |
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