Year | Value | 2022 | 325,798 | 2021 | 324,206 | 2020 | 322,289 | 2019 | 321,286 | 2018 | 325,978 | 2017 | 338,035 | 2016 | 353,553 | 2015 | 369,775 | 2014 | 384,435 | 2013 | 395,656 | 2012 | 402,793 | 2011 | 404,928 | 2010 | 403,160 | 2009 | 400,065 | 2008 | 393,742 | 2007 | 382,183 | 2006 | 369,039 | 2005 | 356,128 | 2004 | 344,402 | 2003 | 336,359 | 2002 | 328,918 | 2001 | 317,017 | 2000 | 297,338 | 1999 | 270,324 | 1998 | 241,712 | 1997 | 220,494 | 1996 | 214,790 | 1995 | 226,902 | 1994 | 252,221 | 1993 | 284,381 | 1992 | 315,837 | 1991 | 339,202 | 1990 | 351,413 | 1989 | 352,105 | 1988 | 345,737 | 1987 | 339,654 | 1986 | 336,188 | 1985 | 339,018 | 1984 | 349,306 | 1983 | 361,872 | 1982 | 370,750 | 1981 | 374,878 | 1980 | 374,865 | 1979 | 371,196 | 1978 | 364,105 | 1977 | 352,359 | 1976 | 334,569 | 1975 | 311,350 | 1974 | 284,814 | 1973 | 256,911 | 1972 | 230,925 | 1971 | 211,673 | 1970 | 202,151 | 1969 | 201,930 | 1968 | 209,480 | 1967 | 222,021 | 1966 | 235,091 | 1965 | 245,489 | 1964 | 251,669 | 1963 | 253,034 | 1962 | 250,667 | 1961 | 246,885 | 1960 | 243,176 |
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