| Year | Value | | 2024 | 2,089,516 | | 2023 | 2,118,754 | | 2022 | 2,158,240 | | 2021 | 2,197,445 | | 2020 | 2,228,159 | | 2019 | 2,248,872 | | 2018 | 2,275,604 | | 2017 | 2,320,326 | | 2016 | 2,374,944 | | 2015 | 2,430,127 | | 2014 | 2,479,458 | | 2013 | 2,512,540 | | 2012 | 2,522,595 | | 2011 | 2,516,836 | | 2010 | 2,510,549 | | 2009 | 2,509,202 | | 2008 | 2,510,787 | | 2007 | 2,515,434 | | 2006 | 2,527,118 | | 2005 | 2,553,248 | | 2004 | 2,594,407 | | 2003 | 2,639,094 | | 2002 | 2,679,852 | | 2001 | 2,708,637 | | 2000 | 2,709,250 | | 1999 | 2,686,052 | | 1998 | 2,664,308 | | 1997 | 2,653,104 | | 1996 | 2,652,369 | | 1995 | 2,670,448 | | 1994 | 2,710,941 | | 1993 | 2,764,417 | | 1992 | 2,819,521 | | 1991 | 2,866,359 | | 1990 | 2,899,144 | | 1989 | 2,915,243 | | 1988 | 2,918,599 | | 1987 | 2,915,616 | | 1986 | 2,906,398 | | 1985 | 2,888,177 | | 1984 | 2,854,844 | | 1983 | 2,804,957 | | 1982 | 2,742,824 | | 1981 | 2,673,430 | | 1980 | 2,599,101 | | 1979 | 2,521,861 | | 1978 | 2,444,029 | | 1977 | 2,367,249 | | 1976 | 2,294,251 | | 1975 | 2,224,250 |
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