Year annual % 1988 3.29509933908696 1989 1.2421236956551667 1990 2.757344053856997 1991 -4.686281584511349 1992 -4.722581669900379 1993 -2.0513328288896275 1994 -10.008948770362935 1995 0.9301737071590708 1996 3.9458619169434996 1997 5.533232833642444 1998 2.2639149793341176 1999 -1.1871804900254546 2000 6.778814738772198 2001 -0.13310614041181168 2002 6.396069513510611 2003 6.601420748537649 2004 9.633614658864275 2005 8.460146405173404 2006 8.228536538231523 2007 7.075201710911955 2008 3.0626660595691817 2009 -3.4515766416576525 2010 7.067482975118239 2011 8.586645287869473 2012 4.050547983197745 2013 6.585980578415217 2014 3.3729132437756704 2015 3.5875522932571187 2016 2.785334136294921 2017 5.821470379183054 2018 3.5134921058026976 2019 2.247224927863158 2020 0.321073682012468 2021 9.000365102989775 2022 3.0776156806420403 2023 4.606589529236288