Year | Value | 2022 | 12,249,804 | 2021 | 12,656,597 | 2020 | 12,970,521 | 2019 | 13,227,583 | 2018 | 13,317,891 | 2017 | 13,307,226 | 2016 | 13,203,789 | 2015 | 12,995,046 | 2014 | 12,799,741 | 2013 | 12,631,143 | 2012 | 12,395,526 | 2011 | 12,138,035 | 2010 | 11,884,127 | 2009 | 11,643,142 | 2008 | 11,331,997 | 2007 | 10,937,122 | 2006 | 10,492,959 | 2005 | 9,750,256 | 2004 | 8,693,768 | 2003 | 7,688,637 | 2002 | 7,021,198 | 2001 | 6,869,098 | 2000 | 7,335,038 | 1999 | 8,277,011 | 1998 | 9,449,838 | 1997 | 10,534,250 | 1996 | 11,082,955 | 1995 | 11,089,525 | 1994 | 10,706,942 | 1993 | 10,026,812 | 1992 | 9,410,872 | 1991 | 9,059,832 | 1990 | 9,053,410 | 1989 | 9,415,962 | 1988 | 9,977,677 | 1987 | 10,421,050 | 1986 | 10,692,123 | 1985 | 10,783,869 | 1984 | 10,654,059 | 1983 | 10,365,343 | 1982 | 9,922,653 | 1981 | 9,337,249 | 1980 | 8,657,153 | 1979 | 7,989,194 | 1978 | 7,442,410 | 1977 | 6,916,268 | 1976 | 6,465,058 | 1975 | 6,346,849 | 1974 | 6,573,872 | 1973 | 6,886,437 | 1972 | 7,346,237 | 1971 | 7,948,274 | 1970 | 8,316,211 | 1969 | 8,324,877 | 1968 | 8,153,744 | 1967 | 7,923,075 | 1966 | 7,681,680 | 1965 | 7,446,520 | 1964 | 7,209,306 | 1963 | 7,068,752 | 1962 | 6,962,986 | 1961 | 6,801,283 | 1960 | 6,721,769 |
|