Year % of GDP 1989 34.71530171323625 1990 37.42182703298738 1991 40.3779100535044 1992 48.5343722341181 1993 46.906830080099766 1994 44.63654042765119 1995 49.232479073429886 1996 48.61001118671477 1997 49.656286776506555 1998 49.706951941618186 1999 50.48005473445827 2000 51.18938670850432 2001 52.49053729403238 2002 53.2342746655562 2003 53.06779250306162 2004 51.69976888142184 2005 50.89766486648959 2006 51.142662723313734 2007 51.88896560647481 2008 51.6860819408571 2009 53.92854503984565 2010 52.703192033465385 2011 52.12249251011802 2012 53.19435953539601 2013 54.214971934437 2014 53.92459738113584 2015 54.168190467076585 2016 54.57082104957074 2017 54.578915017947836 2018 53.781157460356695 2019 54.7439602864375 2020 55.60827394355019 2021 54.1537116783855 2022 54.30044662686403 2023 56.12989574271738