Year annual % 1981 3.6947877908441598 1982 6.568490763500549 1983 4.22827047466518 1984 4.029803461575042 1985 2.018552715647303 1986 1.9200305362086567 1987 1.8971152601188663 1988 2.3409165343649647 1989 -2.2113104382875406 1990 4.532801918996682 1991 -5.354354948233166 1992 9.575488126715896 1993 2.555409030825345 1994 -5.521701263797979 1995 3.7275245830533947 1996 -1.450999716780288 1997 4.000315064542548 1998 1.1179095859326367 1999 2.0788892857759578 2000 10.897190213619695 2001 2.425576381269053 2002 1.9528485755550946 2003 2.0329903089336057 2004 1.8237332805152846 2005 2.925774362679846 2006 2.6978509520358784 2007 1.204145195539624 2008 3.5633153168879232 2009 3.2962723966208927 2010 3.826973127289989 2011 4.160555960265981 2012 3.0764651262378777 2013 4.657226507348128 2014 2.4864239876428087 2015 1.3041317656578002 2016 3.3509001129309723 2017 3.73740142268511 2018 3.7135381946262953 2019 1.6994360753003264 2020 -0.2081849843723944 2021 2.119050109470649 2022 2.3734640251832815 2023 2.410344893879852