| Year | Value | | 2023 | 1,541,866 | | 2022 | 1,510,876 | | 2021 | 1,457,612 | | 2020 | 1,420,274 | | 2019 | 1,394,703 | | 2018 | 1,359,384 | | 2017 | 1,317,634 | | 2016 | 1,280,453 | | 2015 | 1,245,636 | | 2014 | 1,212,394 | | 2013 | 1,186,854 | | 2012 | 1,151,575 | | 2011 | 1,117,514 | | 2010 | 1,079,618 | | 2009 | 1,098,115 | | 2008 | 1,113,546 | | 2007 | 1,126,174 | | 2006 | 1,135,868 | | 2005 | 1,142,109 | | 2004 | 1,144,742 | | 2003 | 1,143,988 | | 2002 | 1,140,156 | | 2001 | 1,133,405 | | 2000 | 1,123,185 | | 1999 | 1,073,350 | | 1998 | 1,029,976 | | 1997 | 981,926 | | 1996 | 935,771 | | 1995 | 901,873 | | 1994 | 859,477 | | 1993 | 826,382 | | 1992 | 803,772 | | 1991 | 780,132 |
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