Year	% of GDP
1980	44.917924234634484
1981	47.92227161256133
1982	44.10147934784149
1983	43.0651339999861
1984	37.232692705862966
1985	30.16729285389194
1986	20.053627349384666
1987	21.886585158111107
1988	27.335943052187627
1989	20.94680364115445
1990	31.818601669855127
1991	13.660381236108435
1992	10.584670620311911
1993	10.129140083899932
1994	14.569497238906804
1995	16.392689385909016
1996	16.364901633881317
1997	14.920629537024421
1998	7.784054740267781
1999	6.469048443491656
2000	25.733251126142648
2001	18.23996124501857
2002	22.827817451956665
2003	25.547485309056157
2004	24.10547562322275
2005	35.966348780195325
2006	42.20862227805092
2007	48.088998443175946
2008	43.726163747892365
2009	28.585930987145165
2010	30.275129057248552
2011	26.879759704251388
2012	36.5301338725832
2013	33.34579855560024
2014	31.40689417848648
2015	23.54230765287116
2016	24.934418050395628
2017	28.896585328497242
2018	28.82445868218464
2019	30.582326765649654
2020	25.72174927534028
2021	32.171369310897106