Year | Value | 2023 | 53,060 | 2022 | 52,818 | 2021 | 51,715 | 2020 | 51,085 | 2019 | 52,886 | 2018 | 52,888 | 2017 | 52,771 | 2016 | 52,749 | 2015 | 52,739 | 2014 | 52,692 | 2013 | 52,680 | 2012 | 52,661 | 2011 | 52,595 | 2010 | 52,522 | 2009 | 52,466 | 2008 | 52,301 | 2007 | 52,002 | 2006 | 51,683 | 2005 | 51,276 | 2004 | 51,040 | 2003 | 50,741 | 2002 | 50,284 | 2001 | 49,819 | 2000 | 49,481 | 1999 | 49,105 | 1998 | 48,652 | 1997 | 48,119 | 1996 | 47,569 | 1995 | 47,053 | 1994 | 46,333 | 1993 | 45,846 | 1992 | 45,073 | 1991 | 44,331 |
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