Year % of GDP 1990 29.745259475234914 1991 32.99158385925385 1992 32.363158285584234 1993 27.708762663730766 1994 24.495169401984082 1995 23.678788791388538 1996 22.634570927921747 1997 22.465686583097035 1998 20.559094140537585 1999 19.74182469549208 2000 21.63272477643254 2001 20.88207269190153 2002 20.56816119712817 2003 21.60486858666795 2004 22.77294071848557 2005 22.97082251318413 2006 24.62704650065518 2007 26.60320933664144 2008 27.08618719412318 2009 21.702538329894892 2010 23.74963751855548 2011 25.345674430461855 2012 24.86556114146521 2013 24.2364547280018 2014 23.92528332608525 2015 24.081003021228714 2016 24.194493326636003 2017 24.808125081508212 2018 23.88021710641016 2019 23.238688544238002 2020 24.193259399986957 2021 24.460440118032196 2022 25.108111364030094 2023 24.642567946287812