Year | Value | 2022 | 146,335 | 2021 | 151,723 | 2020 | 151,353 | 2019 | 152,790 | 2018 | 152,937 | 2017 | 150,684 | 2016 | 150,044 | 2015 | 150,303 | 2014 | 150,987 | 2013 | 156,691 | 2012 | 167,201 | 2011 | 178,687 | 2010 | 191,842 | 2009 | 206,834 | 2008 | 221,031 | 2007 | 233,681 | 2006 | 244,696 | 2005 | 252,602 | 2004 | 257,108 | 2003 | 260,245 | 2002 | 263,054 | 2001 | 269,293 | 2000 | 275,945 | 1999 | 280,650 | 1998 | 286,123 | 1997 | 292,042 | 1996 | 298,623 | 1995 | 304,453 | 1994 | 308,875 | 1993 | 310,719 | 1992 | 309,518 | 1991 | 307,218 | 1990 | 306,382 | 1989 | 309,575 | 1988 | 313,167 | 1987 | 313,123 | 1986 | 310,478 | 1985 | 307,146 | 1984 | 303,439 | 1983 | 298,940 | 1982 | 297,600 | 1981 | 300,311 | 1980 | 303,600 | 1979 | 305,016 | 1978 | 306,456 | 1977 | 309,294 | 1976 | 311,727 | 1975 | 314,519 | 1974 | 317,767 | 1973 | 321,408 | 1972 | 325,032 | 1971 | 327,158 | 1970 | 328,826 | 1969 | 333,352 | 1968 | 339,796 | 1967 | 345,696 | 1966 | 351,616 | 1965 | 355,389 | 1964 | 351,729 | 1963 | 341,090 | 1962 | 328,396 | 1961 | 315,516 | 1960 | 303,890 |
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