Year annual % 1990 8.01232903488547 1991 3.0734989661165 1992 -12.9065538294357 1993 -1.31460371890813 1994 43.5449637733589 1995 8.83312726645855 1996 11.4584549508316 1997 3.78278546499355 1998 6.74940882900434 1999 -7.57286628466451 2000 5.2898048599024 2001 13.797652751767 2002 1.90781944012426 2003 0.0790046920912317 2004 9.73425647986646 2005 23.0012300123001 2006 9.98442792041423 2007 3.30193426256776 2008 8.64881979028074 2009 -9.55875447756326 2010 6.3911950513067 2011 8.58039895814788 2012 1.09724571223187 2013 -4.14136740417744 2014 0.645785332472741 2015 -8.48001725832678 2016 -1.40083927949904 2017 0.0282519135155042 2018 5.01465777807508 2019 2.85603411987745 2020 -5.45489640763718 2021 7.16657628897821 2022 15.145121891457 2023 -0.936604165489314