Year | Value | 2022 | 18,001,000 | 2021 | 17,797,737 | 2020 | 17,588,595 | 2019 | 17,343,740 | 2018 | 17,015,672 | 2017 | 16,696,944 | 2016 | 16,439,585 | 2015 | 16,195,902 | 2014 | 15,957,994 | 2013 | 15,722,989 | 2012 | 15,483,883 | 2011 | 15,237,728 | 2010 | 14,989,585 | 2009 | 14,742,766 | 2008 | 14,496,797 | 2007 | 14,251,835 | 2006 | 14,009,061 | 2005 | 13,770,012 | 2004 | 13,534,593 | 2003 | 13,301,184 | 2002 | 13,070,609 | 2001 | 12,845,521 | 2000 | 12,626,507 | 1999 | 12,412,046 | 1998 | 12,199,693 | 1997 | 11,987,838 | 1996 | 11,775,221 | 1995 | 11,561,683 | 1994 | 11,347,652 | 1993 | 11,132,829 | 1992 | 10,914,222 | 1991 | 10,686,279 | 1990 | 10,449,837 | 1989 | 10,210,185 | 1988 | 9,969,788 | 1987 | 9,729,376 | 1986 | 9,490,096 | 1985 | 9,254,311 | 1984 | 9,022,979 | 1983 | 8,795,873 | 1982 | 8,572,607 | 1981 | 8,352,602 | 1980 | 8,135,845 | 1979 | 7,922,490 | 1978 | 7,712,718 | 1977 | 7,506,665 | 1976 | 7,304,349 | 1975 | 7,105,786 | 1974 | 6,911,123 | 1973 | 6,720,443 | 1972 | 6,533,630 | 1971 | 6,350,944 | 1970 | 6,172,215 | 1969 | 5,997,037 | 1968 | 5,825,663 | 1967 | 5,658,446 | 1966 | 5,495,761 | 1965 | 5,337,351 | 1964 | 5,183,283 | 1963 | 5,034,334 | 1962 | 4,890,425 | 1961 | 4,751,507 | 1960 | 4,618,158 |
|