Year % of GDP 1990 23.15662625000801 1991 22.354143153130664 1992 22.08451945765961 1993 20.647717462234606 1994 22.294777729099998 1995 19.877150705875543 1996 17.797554845318135 1997 16.931748139864386 1998 17.40421840031245 1999 23.033172419316607 2000 22.78991374682271 2001 21.991716960404318 2002 20.465587630602066 2003 22.186000498999828 2004 23.057594468985503 2005 22.218168021029076 2006 21.83572229406599 2007 23.010191394278113 2008 24.394424450546634 2009 25.031330685017334 2010 23.470136485650993 2011 23.81201248606264 2012 24.00504219114205 2013 24.209113672679738 2014 24.14209689680033 2015 24.381202630089092 2016 23.69661484161993 2017 23.951982947947123 2018 23.29314845758968 2019 22.82962484385335 2020 22.209656838538542 2021 22.760458977868236 2022 23.750176158255208 2023 24.518202239470547