| Year | Value | | 2022 | 4,357,959 | | 2021 | 4,320,511 | | 2020 | 4,285,784 | | 2019 | 4,253,063 | | 2018 | 4,221,862 | | 2017 | 4,190,034 | | 2016 | 4,147,577 | | 2015 | 4,097,813 | | 2014 | 4,048,150 | | 2013 | 3,995,499 | | 2012 | 3,945,595 | | 2011 | 3,900,073 | | 2010 | 3,853,536 | | 2009 | 3,810,541 | | 2008 | 3,758,858 | | 2007 | 3,705,120 | | 2006 | 3,667,699 | | 2005 | 3,642,259 | | 2004 | 3,616,695 | | 2003 | 3,589,820 | | 2002 | 3,561,139 | | 2001 | 3,533,011 | | 2000 | 3,510,707 | | 1999 | 3,490,139 | | 1998 | 3,472,473 | | 1997 | 3,461,997 | | 1996 | 3,453,854 | | 1995 | 3,439,260 | | 1994 | 3,416,775 | | 1993 | 3,389,541 | | 1992 | 3,358,413 | | 1991 | 3,322,020 | | 1990 | 3,279,769 | | 1989 | 3,243,454 | | 1988 | 3,215,606 | | 1987 | 3,191,083 | | 1986 | 3,170,308 | | 1985 | 3,152,945 | | 1984 | 3,137,905 | | 1983 | 3,125,801 | | 1982 | 3,111,529 | | 1981 | 3,091,975 | | 1980 | 3,074,183 | | 1979 | 3,061,943 | | 1978 | 3,056,481 | | 1977 | 3,057,628 | | 1976 | 3,069,826 | | 1975 | 3,089,699 | | 1974 | 3,093,216 | | 1973 | 3,078,737 | | 1972 | 3,057,922 | | 1971 | 3,035,187 | | 1970 | 3,019,526 | | 1969 | 2,997,387 | | 1968 | 2,962,164 | | 1967 | 2,923,008 | | 1966 | 2,884,795 | | 1965 | 2,852,648 | | 1964 | 2,817,625 | | 1963 | 2,768,499 | | 1962 | 2,706,282 | | 1961 | 2,634,845 | | 1960 | 2,581,133 |
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