Year | Value | 2022 | 240,123 | 2021 | 240,780 | 2020 | 241,090 | 2019 | 240,572 | 2018 | 239,714 | 2017 | 238,098 | 2016 | 235,563 | 2015 | 232,989 | 2014 | 232,970 | 2013 | 235,777 | 2012 | 239,557 | 2011 | 244,731 | 2010 | 249,505 | 2009 | 250,913 | 2008 | 249,510 | 2007 | 248,398 | 2006 | 247,281 | 2005 | 246,050 | 2004 | 245,208 | 2003 | 244,909 | 2002 | 245,483 | 2001 | 248,632 | 2000 | 255,171 | 1999 | 263,972 | 1998 | 273,961 | 1997 | 284,202 | 1996 | 294,671 | 1995 | 303,347 | 1994 | 308,599 | 1993 | 312,100 | 1992 | 314,490 | 1991 | 314,953 | 1990 | 315,214 | 1989 | 318,639 | 1988 | 321,814 | 1987 | 323,909 | 1986 | 329,139 | 1985 | 336,798 | 1984 | 350,255 | 1983 | 369,938 | 1982 | 391,045 | 1981 | 412,373 | 1980 | 434,275 | 1979 | 450,233 | 1978 | 451,830 | 1977 | 442,518 | 1976 | 427,496 | 1975 | 408,063 | 1974 | 389,712 | 1973 | 381,456 | 1972 | 379,633 | 1971 | 375,111 | 1970 | 367,192 | 1969 | 356,205 | 1968 | 344,221 | 1967 | 333,488 | 1966 | 328,552 | 1965 | 331,727 | 1964 | 338,960 | 1963 | 349,101 | 1962 | 363,830 | 1961 | 384,219 | 1960 | 409,981 |
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