| Year | Value | | 2023 | 3,011,212 | | 2022 | 3,031,889 | | 2021 | 3,046,511 | | 2020 | 3,069,851 | | 2019 | 3,105,172 | | 2018 | 3,146,588 | | 2017 | 3,194,989 | | 2016 | 3,225,770 | | 2015 | 3,227,314 | | 2014 | 3,198,286 | | 2013 | 3,155,897 | | 2012 | 3,114,831 | | 2011 | 3,079,505 | | 2010 | 3,048,619 | | 2009 | 3,019,591 | | 2008 | 2,990,276 | | 2007 | 2,979,332 | | 2006 | 3,025,536 | | 2005 | 3,058,674 | | 2004 | 3,098,078 | | 2003 | 3,139,252 | | 2002 | 3,180,835 | | 2001 | 3,218,739 | | 2000 | 3,246,500 | | 1999 | 3,259,980 | | 1998 | 3,255,170 | | 1997 | 3,228,405 | | 1996 | 3,183,567 | | 1995 | 3,129,773 | | 1994 | 3,074,686 | | 1993 | 3,024,603 | | 1992 | 2,984,136 | | 1991 | 2,949,306 | | 1990 | 2,913,356 | | 1989 | 2,870,682 | | 1988 | 2,818,311 | | 1987 | 2,759,557 | | 1986 | 2,697,930 | | 1985 | 2,635,501 | | 1984 | 2,573,065 | | 1983 | 2,509,156 | | 1982 | 2,443,552 | | 1981 | 2,384,423 | | 1980 | 2,328,688 | | 1979 | 2,271,488 | | 1978 | 2,211,555 | | 1977 | 2,142,839 | | 1976 | 2,068,528 | | 1975 | 2,005,559 | | 1974 | 1,959,230 |
|