Year	% of GDP
1981	41.75084175084175
1982	35.11822930987078
1983	30.800052035904773
1984	35.3853694400196
1985	44.14434250764526
1986	46.77915573575006
1987	47.7872441131227
1988	42.483080513418905
1989	48.291250000000005
1990	34.42825504138011
1991	35.75207586551114
1992	36.0767597691236
1993	31.86366404136595
1994	29.885742324900594
1995	28.81375975612961
1996	26.21512684738797
1997	27.212050148822946
1998	29.7311100122407
1999	31.22587362860626
2000	32.035002986159796
2001	30.83922672359304
2002	31.420981601941268
2003	31.225953221590935
2004	31.10075144581903
2005	31.157361782795135
2006	31.65499969950047
2007	32.69901578867869
2008	30.71448180609394
2009	28.68075082351594
2010	30.082820643365988
2011	29.898401456531325
2012	29.973649082916943
2013	30.9534044254705
2014	31.720090587737882
2015	32.847926779498124
2016	30.145214224819455
2017	29.030199747610347
2018	29.748057105165422
2019	29.755095579541386
2020	30.081455369684768
2021	30.293195686314018
2022	31.342850948809627