Year % of GDP 1994 39.38770613213099 1995 43.236978370341895 1996 41.317733645531504 1997 38.880950710235346 1998 40.11000964209067 1999 39.93982111209101 2000 40.70882197931363 2001 41.184634803533434 2002 52.969764730522705 2003 52.634010760594954 2004 53.961705516796705 2005 57.357703687457196 2006 57.62493419694198 2007 62.44008015896578 2008 66.72003884326007 2009 62.46477038200725 2010 61.49290626634526 2011 62.83281536867389 2012 61.231497700289204 2013 60.812528838086706 2014 58.41835414612419 2015 52.35541382469247 2016 48.014360100174805 2017 49.17537675282125 2018 53.33154595141514 2019 50.809561635849114 2020 48.838444459140526 2021 53.31704106844513 2022 54.36709816215405 2023 49.76850641770068