Year | Value | 2022 | 289,779 | 2021 | 288,733 | 2020 | 287,452 | 2019 | 290,717 | 2018 | 297,768 | 2017 | 308,162 | 2016 | 321,280 | 2015 | 335,718 | 2014 | 348,947 | 2013 | 361,106 | 2012 | 375,361 | 2011 | 390,933 | 2010 | 403,918 | 2009 | 413,635 | 2008 | 419,973 | 2007 | 420,488 | 2006 | 416,354 | 2005 | 409,620 | 2004 | 401,558 | 2003 | 394,154 | 2002 | 387,585 | 2001 | 381,658 | 2000 | 379,277 | 1999 | 379,685 | 1998 | 379,410 | 1997 | 378,103 | 1996 | 375,957 | 1995 | 372,966 | 1994 | 368,353 | 1993 | 363,517 | 1992 | 360,811 | 1991 | 358,785 | 1990 | 356,679 | 1989 | 354,454 | 1988 | 350,963 | 1987 | 346,958 | 1986 | 344,039 | 1985 | 340,926 | 1984 | 336,881 | 1983 | 334,378 | 1982 | 330,882 | 1981 | 324,723 | 1980 | 319,995 | 1979 | 315,696 | 1978 | 308,030 | 1977 | 299,880 | 1976 | 292,245 | 1975 | 280,271 | 1974 | 268,366 | 1973 | 265,801 | 1972 | 269,263 | 1971 | 277,547 | 1970 | 288,276 | 1969 | 298,690 | 1968 | 308,488 | 1967 | 316,640 | 1966 | 322,606 | 1965 | 328,003 | 1964 | 332,028 | 1963 | 332,467 | 1962 | 331,370 | 1961 | 330,640 | 1960 | 330,364 |
|