Year	% of GDP
1981	43.32253566548928
1982	44.405493154535186
1983	43.21103856747814
1984	41.962448243911446
1985	38.47139300705585
1986	42.54869293111505
1987	43.8676231613469
1988	43.02799252802084
1989	43.112624702972845
1990	44.12594126927066
1991	44.88321582558375
1992	46.917894385524626
1993	47.4787900711942
1994	48.78027123908108
1995	46.807151324373905
1996	44.262610813340245
1997	44.51263147179114
1998	46.863047561389585
1999	48.60009735892085
2000	48.827735068873906
2001	48.39479485435374
2002	46.26635640103872
2003	48.52608163902295
2004	49.325527476093725
2005	48.5700865617808
2006	49.29184784280172
2007	48.484259335528726
2008	46.8883202563027
2009	50.95007911940712
2010	51.15781326641889
2011	50.338941840579146
2012	50.624173634604915
2013	51.07129882446883
2014	51.45104352522702
2015	53.721159078053596
2016	53.80578043882599
2017	52.735588307867445
2018	51.47065212229184
2019	50.51182301672073
2020	49.33926289082308
2021	47.801088849751366
2022	46.14957509841788
2023	44.407192990031206