| Year | Value | | 2022 | 1,389,392 | | 2021 | 1,299,412 | | 2020 | 1,190,164 | | 2019 | 1,249,457 | | 2018 | 1,191,792 | | 2017 | 1,173,389 | | 2016 | 1,140,063 | | 2015 | 1,114,682 | | 2014 | 1,038,552 | | 2013 | 1,001,101 | | 2012 | 968,542 | | 2011 | 931,429 | | 2010 | 871,677 | | 2009 | 831,893 | | 2008 | 798,641 | | 2007 | 778,686 | | 2006 | 726,008 | | 2005 | 700,083 | | 2004 | 668,101 | | 2003 | 654,278 | | 2002 | 585,908 | | 2001 | 578,324 | | 2000 | 615,362 | | 1999 | 586,790 | | 1998 | 572,114 | | 1997 | 562,034 | | 1996 | 540,950 | | 1995 | 513,361 | | 1994 | 490,991 | | 1993 | 469,070 | | 1992 | 448,370 | | 1991 | 431,016 |
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