Year | Value | 2022 | 276,029 | 2021 | 283,650 | 2020 | 294,400 | 2019 | 307,085 | 2018 | 320,540 | 2017 | 332,298 | 2016 | 340,955 | 2015 | 346,620 | 2014 | 349,562 | 2013 | 349,816 | 2012 | 347,822 | 2011 | 343,999 | 2010 | 338,637 | 2009 | 332,215 | 2008 | 325,406 | 2007 | 318,841 | 2006 | 314,199 | 2005 | 311,580 | 2004 | 309,817 | 2003 | 309,318 | 2002 | 310,440 | 2001 | 313,486 | 2000 | 317,612 | 1999 | 321,276 | 1998 | 323,615 | 1997 | 324,206 | 1996 | 322,933 | 1995 | 320,301 | 1994 | 316,833 | 1993 | 312,682 | 1992 | 307,448 | 1991 | 301,694 | 1990 | 295,990 | 1989 | 290,902 | 1988 | 286,836 | 1987 | 282,764 | 1986 | 278,994 | 1985 | 276,003 | 1984 | 272,703 | 1983 | 268,380 | 1982 | 263,568 | 1981 | 259,652 | 1980 | 254,634 | 1979 | 247,010 | 1978 | 238,932 | 1977 | 231,026 | 1976 | 223,734 | 1975 | 217,089 | 1974 | 210,769 | 1973 | 204,660 | 1972 | 198,684 | 1971 | 193,026 | 1970 | 187,605 | 1969 | 182,794 | 1968 | 178,185 | 1967 | 172,924 | 1966 | 167,390 | 1965 | 161,691 | 1964 | 156,240 | 1963 | 151,943 | 1962 | 148,688 | 1961 | 145,364 | 1960 | 141,813 |
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