Year | Value | 2022 | 591,670 | 2021 | 572,798 | 2020 | 552,968 | 2019 | 532,095 | 2018 | 510,179 | 2017 | 487,972 | 2016 | 465,691 | 2015 | 443,637 | 2014 | 422,417 | 2013 | 402,274 | 2012 | 383,288 | 2011 | 365,161 | 2010 | 348,152 | 2009 | 332,920 | 2008 | 319,060 | 2007 | 306,501 | 2006 | 296,530 | 2005 | 290,436 | 2004 | 286,175 | 2003 | 281,308 | 2002 | 276,504 | 2001 | 279,904 | 2000 | 286,307 | 1999 | 285,917 | 1998 | 282,589 | 1997 | 282,931 | 1996 | 281,538 | 1995 | 273,159 | 1994 | 265,090 | 1993 | 256,511 | 1992 | 247,506 | 1991 | 238,047 | 1990 | 226,446 | 1989 | 216,302 | 1988 | 208,071 | 1987 | 199,649 | 1986 | 191,615 | 1985 | 184,382 | 1984 | 178,176 | 1983 | 173,033 | 1982 | 168,834 | 1981 | 165,570 | 1980 | 163,303 | 1979 | 159,244 | 1978 | 154,662 | 1977 | 152,439 | 1976 | 151,162 | 1975 | 150,258 | 1974 | 152,060 | 1973 | 154,833 | 1972 | 155,197 | 1971 | 154,261 | 1970 | 152,093 | 1969 | 149,188 | 1968 | 146,198 | 1967 | 143,379 | 1966 | 140,746 | 1965 | 138,444 | 1964 | 136,411 | 1963 | 134,338 | 1962 | 132,285 | 1961 | 130,378 | 1960 | 128,681 |
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