Year annual % growth 1996 6.051299410061105 1997 4.840914005565608 1998 2.447861690397545 1999 2.917934417734628 2000 5.816300849642616 2001 3.3677064647780384 2002 4.008115848142538 2003 4.45080834608504 2004 6.361780671868388 2005 6.837112973669093 2006 7.075403595459349 2007 8.443397283491933 2008 5.826971120668702 2009 2.528710508687766 2010 7.435183802982451 2011 8.247528765725193 2012 5.9176523202550015 2013 5.577850969542226 2014 4.792490255989932 2015 3.900809768554268 2016 4.541549307036647 2017 5.892243597532627 2018 5.194772596674142 2019 4.184085250652458 2020 -3.883933288941961 2021 9.812366307035589 2022 4.575181139796513