Year | Value | 2022 | 282,354 | 2021 | 281,835 | 2020 | 289,680 | 2019 | 289,216 | 2018 | 286,068 | 2017 | 283,159 | 2016 | 281,640 | 2015 | 283,274 | 2014 | 287,617 | 2013 | 293,867 | 2012 | 300,058 | 2011 | 302,198 | 2010 | 296,799 | 2009 | 285,509 | 2008 | 271,828 | 2007 | 257,816 | 2006 | 247,400 | 2005 | 240,102 | 2004 | 234,688 | 2003 | 231,396 | 2002 | 229,492 | 2001 | 229,059 | 2000 | 231,544 | 1999 | 238,140 | 1998 | 250,135 | 1997 | 265,556 | 1996 | 283,077 | 1995 | 301,162 | 1994 | 314,853 | 1993 | 322,254 | 1992 | 326,506 | 1991 | 329,277 | 1990 | 332,337 | 1989 | 336,915 | 1988 | 340,586 | 1987 | 344,342 | 1986 | 349,423 | 1985 | 356,998 | 1984 | 370,428 | 1983 | 388,982 | 1982 | 409,125 | 1981 | 430,089 | 1980 | 450,365 | 1979 | 465,217 | 1978 | 471,272 | 1977 | 467,462 | 1976 | 454,566 | 1975 | 435,058 | 1974 | 410,762 | 1973 | 386,036 | 1972 | 367,667 | 1971 | 357,147 | 1970 | 355,639 | 1969 | 360,749 | 1968 | 366,406 | 1967 | 368,093 | 1966 | 364,251 | 1965 | 356,906 | 1964 | 345,938 | 1963 | 337,245 | 1962 | 340,393 | 1961 | 353,399 | 1960 | 371,672 |
|