Year annual % 1996 4.377737978473533 1997 -13.78718713185178 1998 4.894909511870509 1999 -7.9936046879790865 2000 3.539565188869929 2001 6.3056350894689075 2002 7.700068160600765 2003 4.82105175202976 2004 6.086935871373257 2005 6.1845122961710075 2006 4.05609699921547 2007 1.5765241065337676 2008 8.904672724255974 2009 -1.91914151987271 2010 2.684260162095569 2011 0.9618205251079388 2012 2.6477026727506967 2013 -1.4177167260375114 2014 2.3180993635445617 2015 1.070782969450022 2016 2.9790380730094483 2017 3.682764574355943 2018 1.548197450353399 2019 4.44780264083829 2020 -4.686818654617966 2021 7.024575154854489 2022 4.736113950228571 2023 1.7171596404940175