| Year | Value | | 2023 | 1,368,568 | | 2022 | 1,381,592 | | 2021 | 1,387,825 | | 2020 | 1,321,242 | | 2019 | 1,344,543 | | 2018 | 1,330,417 | | 2017 | 1,351,075 | | 2016 | 1,365,760 | | 2015 | 1,385,813 | | 2014 | 1,400,680 | | 2013 | 1,386,578 | | 2012 | 1,416,274 | | 2011 | 1,428,367 | | 2010 | 1,464,249 | | 2009 | 1,463,957 | | 2008 | 1,490,660 | | 2007 | 1,482,648 | | 2006 | 1,474,993 | | 2005 | 1,474,492 | | 2004 | 1,479,078 | | 2003 | 1,479,854 | | 2002 | 1,467,568 | | 2001 | 1,446,102 | | 2000 | 1,429,767 | | 1999 | 1,410,411 | | 1998 | 1,385,922 | | 1997 | 1,351,290 | | 1996 | 1,289,877 | | 1995 | 1,221,728 | | 1994 | 1,230,222 | | 1993 | 1,311,920 | | 1992 | 1,459,851 | | 1991 | 1,559,825 |
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