Year	% of GDP
1980	28.12065837031265
1981	28.847791085377377
1982	30.339794432866977
1983	30.158744413514793
1984	30.076025426684133
1985	26.068127795189
1986	28.367806076060127
1987	30.95428850946731
1988	33.05962329375961
1989	34.998119305294075
1990	33.776159019721085
1991	51.57604621748807
1992	51.963348091810346
1993	49.49425364698525
1994	45.85525426643965
1995	46.63625560010941
1996	47.179671096973735
1997	47.05106908745129
1998	50.21234431620092
1999	48.69459347291791
2000	44.66391794931992
2001	46.83486170575251
2002	45.09974606061278
2003	42.913645827579835
2004	47.568591919036656
2005	39.73342171532117
2006	34.72711881215156
2007	31.613075363993303
2008	34.48656812139894
2009	40.90961266213476
2010	41.18371691081785
2011	39.07902033271719
2012	38.00500616689184
2013	40.770455518829834
2014	40.49648791041424
2015	45.390965982302454
2016	44.93268624160382
2017	42.01687927809966
2018	40.75046958698718
2019	40.40210800212329
2020	42.1303355896619
2021	39.15371831790606