Year	% of GDP
1972	22.818141704573208
1973	22.873684402742146
1974	23.771272812993377
1975	22.88233218505462
1976	21.77024548985025
1977	20.74879635123548
1978	21.14889515305268
1979	21.89795821815503
1980	21.21163947030509
1981	22.551618525544136
1982	22.950691940638553
1983	20.57326029760681
1984	20.944708045997064
1985	20.10444760120506
1986	20.303889894040104
1987	20.69383401962524
1988	22.305864465736096
1989	23.441654870379836
1990	23.50750725415523
1991	22.856920901229028
1992	23.1609551950494
1993	22.506350565728845
1994	22.25478828401356
1995	22.51334734525493
1996	23.44783663350224
1997	21.996903575994114
1998	23.955378679797416
1999	25.86039431344598
2000	25.105572588888954
2001	22.764067373412395
2002	22.59271182148641
2003	23.677082333855395
2004	24.76632096681272
2005	27.242993122802318
2006	26.897137581756535
2007	25.958491784000316
2008	22.797774575151013
2009	19.933538648120933
2010	20.22643799330785
2011	20.582177425734685
2012	21.50330707674498
2013	21.656785501488727
2014	24.491959981955805
2015	22.689444117931426
2016	37.61284978713397
2017	23.923213201680515
2018	22.978361068723384
2019	21.932013415645603
2020	22.401613751202714
2021	21.41282996418344
2022	22.522008176900425