Year % GDP 1997 20.724985853757826 1998 22.887696479797274 1999 26.17857779425027 2000 43.470122191292575 2001 29.708698054604643 2002 15.230228850691024 2003 16.75703043897375 2004 20.77143387122317 2005 26.415916543881234 2006 26.25547526848038 2007 31.802303590396736 2008 36.81695237320483 2009 40.15068465997004 2010 47.18676933261137 2011 44.867759760589095 2012 46.57506648389779 2013 40.97794132883911 2014 40.794950473477236 2015 40.6446398260365 2016 40.88813020490585 2017 40.2851832878553 2018 41.404906653394654 2019 41.99926008667924 2020 45.49912615848041 2021 43.44086274979242 2022 40.34724438690035 2023 35.75019033218973