| Year | Value | | 2023 | 5,301,571 | | 2022 | 5,174,651 | | 2021 | 5,101,650 | | 2020 | 4,805,372 | | 2019 | 5,091,385 | | 2018 | 4,931,651 | | 2017 | 4,752,184 | | 2016 | 4,685,793 | | 2015 | 4,579,344 | | 2014 | 4,325,193 | | 2013 | 4,236,156 | | 2012 | 4,176,432 | | 2011 | 4,015,614 | | 2010 | 3,844,470 | | 2009 | 3,690,074 | | 2008 | 3,757,662 | | 2007 | 3,660,256 | | 2006 | 3,593,807 | | 2005 | 3,480,356 | | 2004 | 3,424,410 | | 2003 | 3,342,971 | | 2002 | 3,331,113 | | 2001 | 3,246,913 | | 2000 | 3,246,426 | | 1999 | 3,168,723 | | 1998 | 3,088,071 | | 1997 | 3,006,488 | | 1996 | 2,921,358 | | 1995 | 2,842,394 | | 1994 | 2,764,365 | | 1993 | 2,694,887 | | 1992 | 2,618,556 | | 1991 | 2,536,400 |
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