Year | Value | 2022 | 349,800 | 2021 | 348,564 | 2020 | 346,475 | 2019 | 344,400 | 2018 | 341,240 | 2017 | 338,889 | 2016 | 335,367 | 2015 | 330,899 | 2014 | 327,685 | 2013 | 325,075 | 2012 | 322,131 | 2011 | 320,773 | 2010 | 319,048 | 2009 | 316,212 | 2008 | 314,984 | 2007 | 311,237 | 2006 | 303,501 | 2005 | 296,863 | 2004 | 290,711 | 2003 | 282,616 | 2002 | 275,101 | 2001 | 268,732 | 2000 | 261,292 | 1999 | 255,882 | 1998 | 254,382 | 1997 | 254,886 | 1996 | 258,163 | 1995 | 262,698 | 1994 | 264,264 | 1993 | 263,602 | 1992 | 263,993 | 1991 | 264,996 | 1990 | 265,083 | 1989 | 264,848 | 1988 | 264,667 | 1987 | 262,967 | 1986 | 260,861 | 1985 | 259,151 | 1984 | 257,697 | 1983 | 256,315 | 1982 | 253,861 | 1981 | 250,245 | 1980 | 245,331 | 1979 | 236,983 | 1978 | 226,121 | 1977 | 217,013 | 1976 | 210,111 | 1975 | 199,534 | 1974 | 192,467 | 1973 | 195,197 | 1972 | 199,966 | 1971 | 204,672 | 1970 | 210,124 | 1969 | 212,849 | 1968 | 212,406 | 1967 | 211,104 | 1966 | 209,431 | 1965 | 204,856 | 1964 | 200,290 | 1963 | 197,488 | 1962 | 192,667 | 1961 | 187,408 | 1960 | 184,823 |
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