Year | Value | 2022 | 296,203 | 2021 | 297,950 | 2020 | 301,328 | 2019 | 306,008 | 2018 | 311,801 | 2017 | 317,664 | 2016 | 322,491 | 2015 | 326,170 | 2014 | 328,988 | 2013 | 329,937 | 2012 | 328,187 | 2011 | 323,964 | 2010 | 317,541 | 2009 | 309,399 | 2008 | 299,409 | 2007 | 290,146 | 2006 | 282,531 | 2005 | 275,370 | 2004 | 268,574 | 2003 | 262,503 | 2002 | 257,221 | 2001 | 252,185 | 2000 | 248,885 | 1999 | 247,605 | 1998 | 247,678 | 1997 | 248,706 | 1996 | 250,530 | 1995 | 251,279 | 1994 | 250,133 | 1993 | 248,009 | 1992 | 244,198 | 1991 | 238,782 | 1990 | 231,780 | 1989 | 224,052 | 1988 | 216,215 | 1987 | 208,941 | 1986 | 203,624 | 1985 | 200,878 | 1984 | 199,476 | 1983 | 198,636 | 1982 | 198,169 | 1981 | 197,168 | 1980 | 196,167 | 1979 | 195,534 | 1978 | 194,837 | 1977 | 194,166 | 1976 | 194,273 | 1975 | 194,519 | 1974 | 193,844 | 1973 | 192,907 | 1972 | 192,028 | 1971 | 191,511 | 1970 | 191,156 | 1969 | 187,765 | 1968 | 180,969 | 1967 | 173,774 | 1966 | 166,617 | 1965 | 160,256 | 1964 | 159,087 | 1963 | 162,818 | 1962 | 167,826 | 1961 | 172,784 | 1960 | 177,103 |
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