Year | Value | 2022 | 42,119,116 | 2021 | 41,605,816 | 2020 | 41,079,410 | 2019 | 40,421,274 | 2018 | 39,811,236 | 2017 | 39,160,450 | 2016 | 38,639,071 | 2015 | 38,061,611 | 2014 | 37,408,944 | 2013 | 37,028,436 | 2012 | 36,917,746 | 2011 | 36,459,919 | 2010 | 35,363,062 | 2009 | 34,065,559 | 2008 | 32,743,598 | 2007 | 31,251,927 | 2006 | 29,982,114 | 2005 | 29,478,512 | 2004 | 29,243,642 | 2003 | 28,742,399 | 2002 | 28,249,496 | 2001 | 27,878,066 | 2000 | 27,497,070 | 1999 | 27,117,392 | 1998 | 26,758,235 | 1997 | 26,438,716 | 1996 | 26,184,502 | 1995 | 25,994,735 | 1994 | 25,918,577 | 1993 | 25,898,219 | 1992 | 25,856,560 | 1991 | 25,809,156 | 1990 | 25,700,853 | 1989 | 25,511,129 | 1988 | 25,463,377 | 1987 | 25,478,344 | 1986 | 25,321,183 | 1985 | 25,186,890 | 1984 | 24,848,655 | 1983 | 23,812,957 | 1982 | 22,476,918 | 1981 | 21,330,513 | 1980 | 20,327,399 | 1979 | 19,898,836 | 1978 | 20,301,363 | 1977 | 21,083,607 | 1976 | 21,788,436 | 1975 | 22,245,361 | 1974 | 22,361,349 | 1973 | 22,221,164 | 1972 | 21,962,861 | 1971 | 21,593,836 | 1970 | 21,166,938 | 1969 | 20,738,744 | 1968 | 20,240,506 | 1967 | 19,815,982 | 1966 | 19,484,069 | 1965 | 19,155,637 | 1964 | 18,825,384 | 1963 | 18,544,524 | 1962 | 18,225,204 | 1961 | 17,862,341 | 1960 | 17,524,940 |
|