Year | Value | 2023 | 487,924 | 2022 | 491,271 | 2021 | 489,893 | 2020 | 481,665 | 2019 | 468,764 | 2018 | 454,137 | 2017 | 440,334 | 2016 | 427,689 | 2015 | 415,708 | 2014 | 404,271 | 2013 | 394,308 | 2012 | 385,885 | 2011 | 378,747 | 2010 | 371,558 | 2009 | 364,048 | 2008 | 353,823 | 2007 | 345,895 | 2006 | 342,811 | 2005 | 343,555 | 2004 | 348,158 | 2003 | 354,795 | 2002 | 360,309 | 2001 | 364,294 | 2000 | 368,384 | 1999 | 371,157 | 1998 | 371,318 | 1997 | 371,060 | 1996 | 372,465 | 1995 | 372,143 | 1994 | 369,050 | 1993 | 362,283 | 1992 | 352,014 | 1991 | 338,774 | 1990 | 322,845 | 1989 | 304,861 | 1988 | 284,967 | 1987 | 265,089 | 1986 | 246,405 | 1985 | 228,056 | 1984 | 211,585 | 1983 | 199,770 | 1982 | 190,305 | 1981 | 177,322 | 1980 | 159,758 | 1979 | 140,142 | 1978 | 120,038 | 1977 | 106,031 | 1976 | 107,423 | 1975 | 121,280 |
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