Year % of GDP 1993 15.073426051531458 1994 23.668883829727832 1995 31.572767554376785 1996 36.78466290009433 1997 41.195554483073906 1998 44.325245609037225 1999 43.175567142227806 2000 43.49036053928553 2001 44.79235390175669 2002 40.6373481518103 2003 38.31223593246887 2004 39.991684863034564 2005 40.598085852778695 2006 37.49776761861532 2007 35.13672604803197 2008 38.04488957923974 2009 36.884229488906634 2010 39.39656790043204 2011 40.782468519564304 2012 43.57066748372659 2013 45.568267682595454 2014 45.251575921378205 2015 43.00527501888414 2016 43.32987079122104 2017 43.474474086125866 2018 43.984556340547556 2019 44.013619146217884 2020 41.49620911735625 2021 52.07898328756946 2022 52.9499894889194 2023 55.01710755935203