| Year | Value | | 2022 | 1,216,459 | | 2021 | 1,213,985 | | 2020 | 1,212,058 | | 2019 | 1,208,802 | | 2018 | 1,203,438 | | 2017 | 1,197,983 | | 2016 | 1,192,987 | | 2015 | 1,188,475 | | 2014 | 1,184,330 | | 2013 | 1,180,399 | | 2012 | 1,177,371 | | 2011 | 1,175,261 | | 2010 | 1,173,181 | | 2009 | 1,171,282 | | 2008 | 1,170,314 | | 2007 | 1,170,224 | | 2006 | 1,170,744 | | 2005 | 1,171,843 | | 2004 | 1,173,001 | | 2003 | 1,173,927 | | 2002 | 1,174,317 | | 2001 | 1,187,130 | | 2000 | 1,186,387 | | 1999 | 1,185,212 | | 1998 | 1,183,736 | | 1997 | 1,181,587 | | 1996 | 1,184,171 | | 1995 | 1,182,185 | | 1994 | 1,185,391 | | 1993 | 1,183,978 | | 1992 | 1,185,871 | | 1991 | 1,186,044 | | 1990 | 1,181,308 | | 1989 | 1,170,080 | | 1988 | 1,157,287 | | 1987 | 1,143,778 | | 1986 | 1,129,594 | | 1985 | 1,114,758 | | 1984 | 1,099,264 | | 1983 | 1,083,040 | | 1982 | 1,065,889 | | 1981 | 1,045,143 | | 1980 | 1,019,666 | | 1979 | 993,972 | | 1978 | 968,770 | | 1977 | 944,227 | | 1976 | 920,376 | | 1975 | 897,101 | | 1974 | 874,455 | | 1973 | 852,383 | | 1972 | 830,790 | | 1971 | 810,056 | | 1970 | 779,997 | | 1969 | 746,804 | | 1968 | 714,499 | | 1967 | 683,373 | | 1966 | 653,420 | | 1965 | 624,688 | | 1964 | 597,227 | | 1963 | 570,725 | | 1962 | 546,124 | | 1961 | 521,559 | | 1960 | 497,498 |
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