Year | Value | 2022 | 399,436 | 2021 | 399,530 | 2020 | 399,270 | 2019 | 396,549 | 2018 | 392,733 | 2017 | 389,235 | 2016 | 385,412 | 2015 | 380,772 | 2014 | 375,299 | 2013 | 369,471 | 2012 | 363,899 | 2011 | 357,594 | 2010 | 349,111 | 2009 | 343,128 | 2008 | 339,442 | 2007 | 337,408 | 2006 | 336,882 | 2005 | 332,664 | 2004 | 323,677 | 2003 | 313,126 | 2002 | 297,687 | 2001 | 277,319 | 2000 | 262,782 | 1999 | 258,498 | 1998 | 258,632 | 1997 | 262,951 | 1996 | 271,106 | 1995 | 278,421 | 1994 | 281,338 | 1993 | 281,789 | 1992 | 284,545 | 1991 | 290,847 | 1990 | 298,189 | 1989 | 303,572 | 1988 | 305,934 | 1987 | 305,978 | 1986 | 304,811 | 1985 | 303,951 | 1984 | 304,671 | 1983 | 307,308 | 1982 | 310,153 | 1981 | 312,965 | 1980 | 315,171 | 1979 | 309,214 | 1978 | 288,908 | 1977 | 261,886 | 1976 | 236,292 | 1975 | 215,932 | 1974 | 211,979 | 1973 | 227,878 | 1972 | 251,864 | 1971 | 272,959 | 1970 | 288,066 | 1969 | 295,161 | 1968 | 297,164 | 1967 | 299,133 | 1966 | 301,641 | 1965 | 304,070 | 1964 | 305,434 | 1963 | 305,939 | 1962 | 306,035 | 1961 | 308,033 | 1960 | 309,422 |
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