| Year | Value | | 2022 | 8,472,620 | | 2021 | 8,528,250 | | 2020 | 8,441,710 | | 2019 | 8,128,173 | | 2018 | 7,748,737 | | 2017 | 7,344,968 | | 2016 | 6,943,938 | | 2015 | 6,571,264 | | 2014 | 6,236,248 | | 2013 | 5,940,993 | | 2012 | 5,687,989 | | 2011 | 5,472,095 | | 2010 | 5,282,991 | | 2009 | 5,110,334 | | 2008 | 4,947,055 | | 2007 | 4,788,326 | | 2006 | 4,631,062 | | 2005 | 4,475,305 | | 2004 | 4,323,411 | | 2003 | 4,177,119 | | 2002 | 4,035,988 | | 2001 | 3,898,860 | | 2000 | 3,764,760 | | 1999 | 3,633,380 | | 1998 | 3,504,193 | | 1997 | 3,377,159 | | 1996 | 3,253,392 | | 1995 | 3,133,434 | | 1994 | 3,017,079 | | 1993 | 2,904,635 | | 1992 | 2,794,843 | | 1991 | 2,684,405 | | 1990 | 2,571,719 | | 1989 | 2,456,721 | | 1988 | 2,338,160 | | 1987 | 2,218,928 | | 1986 | 2,107,444 | | 1985 | 2,009,375 | | 1984 | 1,925,174 | | 1983 | 1,856,351 | | 1982 | 1,798,683 | | 1981 | 1,740,407 | | 1980 | 1,672,350 | | 1979 | 1,591,390 | | 1978 | 1,495,127 | | 1977 | 1,387,597 | | 1976 | 1,284,171 | | 1975 | 1,196,833 | | 1974 | 1,128,360 | | 1973 | 1,082,902 | | 1972 | 1,058,095 | | 1971 | 1,037,835 | | 1970 | 1,011,833 | | 1969 | 977,691 | | 1968 | 928,656 | | 1967 | 867,273 | | 1966 | 809,113 | | 1965 | 764,087 | | 1964 | 732,038 | | 1963 | 716,725 | | 1962 | 719,304 | | 1961 | 728,607 | | 1960 | 733,547 |
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