Year % of GDP 1995 171.36209813874788 1996 175.3441295546559 1997 168.7819110138585 1998 163.26735994632674 1999 164.55901426718546 2000 145.07287951620407 2001 140.3911086183056 2002 133.23077142124896 2003 132.79429127402324 2004 132.43092979517345 2005 145.0502801442372 2006 141.04262673462551 2007 139.972309491093 2008 139.1101498247008 2009 137.556575933708 2010 135.4646546775809 2011 154.43778686288695 2012 156.64519720594384 2013 161.89128031963293 2014 162.88205210123024 2015 145.83366329763686 2016 142.23976338713206 2017 143.80429551501524 2018 145.21355235089192 2019 145.3435727352891 2020 124.16237444868257 2021 139.90008715410684 2022 160.45925723055987