Year annual % 1992 1020.62056524354 1993 410.451858561316 1994 72.2546816164428 1995 39.6476290328289 1996 24.62519538645 1997 8.88104848465892 1998 5.06755385841968 1999 0.727550626557424 2000 0.981615478857598 2001 1.36712030817819 2002 0.281506610345575 2003 -1.13430854990247 2004 1.16410252104671 2005 2.65848484065262 2006 3.73912004060664 2007 5.73717382799842 2008 10.9258856241655 2009 4.45304456518535 2010 1.31921362055463 2011 4.13027562645085 2012 3.08998277055417 2013 1.04747937065344 2014 0.103758009433708 2015 -0.884097405500596 2016 0.905525075460342 2017 3.72288862303707 2018 2.69792779208394 2019 2.33450937988027 2020 1.19989444983569 2021 4.68354420903453 2022 19.7050461518394 2023 9.11731962390475