Year | Value | 2022 | 504,268 | 2021 | 501,474 | 2020 | 499,570 | 2019 | 497,936 | 2018 | 495,177 | 2017 | 490,915 | 2016 | 484,928 | 2015 | 476,479 | 2014 | 465,968 | 2013 | 454,895 | 2012 | 443,842 | 2011 | 432,702 | 2010 | 422,839 | 2009 | 412,824 | 2008 | 400,967 | 2007 | 388,560 | 2006 | 375,915 | 2005 | 363,480 | 2004 | 351,253 | 2003 | 339,179 | 2002 | 327,847 | 2001 | 317,951 | 2000 | 309,531 | 1999 | 302,514 | 1998 | 296,870 | 1997 | 291,986 | 1996 | 287,247 | 1995 | 282,688 | 1994 | 278,455 | 1993 | 274,340 | 1992 | 270,109 | 1991 | 265,845 | 1990 | 261,538 | 1989 | 257,135 | 1988 | 252,767 | 1987 | 248,404 | 1986 | 244,059 | 1985 | 239,769 | 1984 | 235,209 | 1983 | 230,352 | 1982 | 225,438 | 1981 | 220,255 | 1980 | 214,811 | 1979 | 209,211 | 1978 | 202,203 | 1977 | 195,068 | 1976 | 189,708 | 1975 | 185,333 | 1974 | 181,736 | 1973 | 180,078 | 1972 | 179,019 | 1971 | 176,741 | 1970 | 174,102 | 1969 | 171,615 | 1968 | 169,464 | 1967 | 167,509 | 1966 | 165,416 | 1965 | 162,902 | 1964 | 159,906 | 1963 | 156,494 | 1962 | 152,785 | 1961 | 149,130 | 1960 | 145,807 |
|