Year % of GDP 1990 38.17090069284065 1991 44.44444444444444 1992 39.130434782608695 1993 28.12182741116751 1994 27.01624234249424 1995 27.976244409116745 1996 29.55811904774316 1997 30.399367554453015 1998 29.477000289107487 1999 28.196396374961008 2000 27.04350872583153 2001 26.59958540050777 2002 25.968406514578223 2003 26.65350282238656 2004 28.55028224628839 2005 25.34214679922726 2006 24.9998107661448 2007 24.906936941480136 2008 26.184367459018667 2009 22.45739183187148 2010 22.5100870673179 2011 26.422236326059007 2012 24.783027982893874 2013 21.99575510836998 2014 21.087380086623064 2015 20.643977310643976 2016 20.15187100443396 2017 21.628777849226463 2018 21.258175277959452 2019 21.63999643737197 2020 21.48663180181805 2021 22.7584959209403 2022 23.99409520958393 2023 23.009176757274286