Year | Value | 2022 | 284,104 | 2021 | 271,921 | 2020 | 262,291 | 2019 | 258,116 | 2018 | 256,240 | 2017 | 257,254 | 2016 | 261,229 | 2015 | 268,120 | 2014 | 275,191 | 2013 | 281,459 | 2012 | 288,490 | 2011 | 295,928 | 2010 | 302,204 | 2009 | 308,167 | 2008 | 313,899 | 2007 | 317,416 | 2006 | 318,224 | 2005 | 315,889 | 2004 | 310,735 | 2003 | 302,302 | 2002 | 290,572 | 2001 | 277,361 | 2000 | 264,151 | 1999 | 251,715 | 1998 | 241,193 | 1997 | 232,686 | 1996 | 226,582 | 1995 | 222,586 | 1994 | 220,259 | 1993 | 220,161 | 1992 | 220,387 | 1991 | 217,656 | 1990 | 212,412 | 1989 | 207,303 | 1988 | 202,743 | 1987 | 199,343 | 1986 | 197,557 | 1985 | 197,874 | 1984 | 199,362 | 1983 | 200,373 | 1982 | 200,592 | 1981 | 200,331 | 1980 | 199,102 | 1979 | 196,538 | 1978 | 192,444 | 1977 | 186,819 | 1976 | 179,787 | 1975 | 172,133 | 1974 | 164,484 | 1973 | 157,318 | 1972 | 151,372 | 1971 | 146,392 | 1970 | 142,096 | 1969 | 136,229 | 1968 | 128,106 | 1967 | 119,085 | 1966 | 109,437 | 1965 | 98,708 | 1964 | 86,598 | 1963 | 73,771 | 1962 | 64,117 | 1961 | 60,793 | 1960 | 61,686 |
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