| Year | Value | | 2022 | 1,376,487 | | 2021 | 1,371,879 | | 2020 | 1,380,188 | | 2019 | 1,391,097 | | 2018 | 1,407,943 | | 2017 | 1,448,676 | | 2016 | 1,514,406 | | 2015 | 1,597,604 | | 2014 | 1,694,174 | | 2013 | 1,809,323 | | 2012 | 1,928,191 | | 2011 | 2,023,482 | | 2010 | 2,092,116 | | 2009 | 2,136,790 | | 2008 | 2,140,164 | | 2007 | 2,095,432 | | 2006 | 2,032,024 | | 2005 | 1,965,814 | | 2004 | 1,894,484 | | 2003 | 1,826,357 | | 2002 | 1,762,408 | | 2001 | 1,717,547 | | 2000 | 1,697,791 | | 1999 | 1,685,740 | | 1998 | 1,672,024 | | 1997 | 1,645,133 | | 1996 | 1,610,914 | | 1995 | 1,578,864 | | 1994 | 1,544,690 | | 1993 | 1,509,541 | | 1992 | 1,481,027 | | 1991 | 1,449,711 | | 1990 | 1,413,432 | | 1989 | 1,375,909 | | 1988 | 1,337,850 | | 1987 | 1,304,341 | | 1986 | 1,277,065 | | 1985 | 1,255,962 | | 1984 | 1,244,232 | | 1983 | 1,244,028 | | 1982 | 1,244,977 | | 1981 | 1,238,200 | | 1980 | 1,237,231 | | 1979 | 1,238,004 | | 1978 | 1,221,090 | | 1977 | 1,185,882 | | 1976 | 1,140,780 | | 1975 | 1,109,869 | | 1974 | 1,059,484 | | 1973 | 991,211 | | 1972 | 967,280 | | 1971 | 991,274 | | 1970 | 1,013,145 | | 1969 | 1,055,364 | | 1968 | 1,122,519 | | 1967 | 1,164,422 | | 1966 | 1,182,832 | | 1965 | 1,195,060 | | 1964 | 1,203,208 | | 1963 | 1,196,286 | | 1962 | 1,183,141 | | 1961 | 1,170,798 | | 1960 | 1,156,190 |
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