| Year | Value | | 2024 | 3,462,499 | | 2023 | 3,400,600 | | 2022 | 3,366,274 | | 2021 | 3,355,686 | | 2020 | 3,311,747 | | 2019 | 3,242,702 | | 2018 | 3,180,869 | | 2017 | 3,121,121 | | 2016 | 3,065,851 | | 2015 | 3,019,422 | | 2014 | 2,953,442 | | 2013 | 2,873,092 | | 2012 | 2,800,285 | | 2011 | 2,713,706 | | 2010 | 2,645,214 | | 2009 | 2,603,633 | | 2008 | 2,548,133 | | 2007 | 2,536,793 | | 2006 | 2,534,353 | | 2005 | 2,473,272 | | 2004 | 2,424,370 | | 2003 | 2,369,709 | | 2002 | 2,251,600 | | 2001 | 2,154,680 | | 2000 | 2,152,576 | | 1999 | 2,135,955 | | 1998 | 2,062,214 | | 1997 | 1,984,560 | | 1996 | 1,902,450 | | 1995 | 1,814,439 | | 1994 | 1,711,372 | | 1993 | 1,557,825 | | 1992 | 1,370,759 | | 1991 | 1,251,106 | | 1990 | 1,218,833 | | 1989 | 1,187,640 | | 1988 | 1,138,526 | | 1987 | 1,113,494 | | 1986 | 1,107,928 | | 1985 | 1,104,858 | | 1984 | 1,082,973 | | 1983 | 1,056,860 | | 1982 | 1,063,213 | | 1981 | 1,152,890 | | 1980 | 1,267,935 | | 1979 | 1,310,987 | | 1978 | 1,302,967 | | 1977 | 1,271,965 | | 1976 | 1,239,672 | | 1975 | 1,207,059 |
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