Year % of GDP 1980 35.24069162203473 1981 39.25712826310025 1982 29.43575332744005 1983 23.66983022732085 1984 21.625354387459726 1985 22.04476688535885 1986 22.899554021513076 1987 20.26334586776788 1988 16.267686767962875 1989 17.077257770542534 1990 18.08350295103962 1991 18.498892922330732 1992 16.084786522044098 1993 19.97041811006764 1994 17.808126084518612 1995 18.044977638904122 1996 19.82860539107468 1997 20.075299539895052 1998 25.542179916638997 1999 26.073151798656173 2000 20.953886407533385 2001 20.862155239367556 2002 23.47976386621972 2003 27.797433027033318 2004 29.771180191859116 2005 23.448585903207665 2006 23.213845974592218 2007 21.76742454678636 2008 26.736991394328857 2009 23.6344308918151 2010 22.44196277946745 2011 24.567632814354727 2012 21.919072090827008 2013 24.016645568284762 2014 22.664497575704992 2015 24.814484294729304 2016 23.38644709874701 2017 24.253782864524208 2018 23.5044817818138 2019 24.114681422549626 2020 23.177961355298365 2021 25.433777438886167 2022 26.518071817950727 2023 20.704844026375017