| Year | Value | | 2022 | 5,136,979 | | 2021 | 4,957,407 | | 2020 | 4,790,391 | | 2019 | 4,638,268 | | 2018 | 4,496,013 | | 2017 | 4,362,672 | | 2016 | 4,246,065 | | 2015 | 4,146,512 | | 2014 | 4,040,569 | | 2013 | 3,916,696 | | 2012 | 3,788,475 | | 2011 | 3,649,016 | | 2010 | 3,497,024 | | 2009 | 3,365,475 | | 2008 | 3,261,057 | | 2007 | 3,161,459 | | 2006 | 3,060,562 | | 2005 | 2,960,363 | | 2004 | 2,859,620 | | 2003 | 2,758,358 | | 2002 | 2,655,677 | | 2001 | 2,549,889 | | 2000 | 2,448,944 | | 1999 | 2,356,660 | | 1998 | 2,269,232 | | 1997 | 2,201,555 | | 1996 | 2,168,399 | | 1995 | 2,141,918 | | 1994 | 2,065,403 | | 1993 | 1,977,455 | | 1992 | 1,928,472 | | 1991 | 1,885,048 | | 1990 | 1,834,454 | | 1989 | 1,782,375 | | 1988 | 1,731,936 | | 1987 | 1,680,164 | | 1986 | 1,627,601 | | 1985 | 1,575,908 | | 1984 | 1,522,196 | | 1983 | 1,469,014 | | 1982 | 1,420,416 | | 1981 | 1,373,836 | | 1980 | 1,328,940 | | 1979 | 1,281,706 | | 1978 | 1,229,353 | | 1977 | 1,183,760 | | 1976 | 1,148,560 | | 1975 | 1,115,484 | | 1974 | 1,083,847 | | 1973 | 1,053,802 | | 1972 | 1,025,298 | | 1971 | 998,773 | | 1970 | 972,701 | | 1969 | 946,145 | | 1968 | 922,870 | | 1967 | 905,844 | | 1966 | 893,180 | | 1965 | 882,096 | | 1964 | 871,631 | | 1963 | 857,656 | | 1962 | 836,833 | | 1961 | 812,066 | | 1960 | 786,479 |
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