Year annual % 1991 -1.510485280051924 1992 -2.6981712628843155 1993 -0.3225100884614278 1994 0.4704429255987179 1995 3.3504380943784327 1996 1.1932454828182557 1997 0.961567235066326 1998 1.3629575276241184 1999 -0.14227852928843276 2000 -0.3169403582247128 2001 1.169650413516024 2002 0.2639614234460055 2003 1.6952969912691174 2004 3.342847167426612 2005 3.460825955197791 2006 5.281673063326593 2007 2.7525353722987376 2008 -0.7274956460875899 2009 -1.0655894282233334 2010 3.0101529194023584 2011 -0.4148722393200899 2012 1.6252300073391126 2013 1.3964458320960205 2014 1.1482260874611967 2015 2.0174500080463247 2016 -0.33826804623144824 2017 0.10574665186754828 2018 -0.004793609455234105 2019 -0.19097171669007196 2020 -5.485694263137404 2021 2.445329084472931 2022 0.8689256904500553 2023 -0.2983742633977329