Year	% of GDP
1976	15.834843733931777
1977	16.365226620289818
1978	17.04019444951786
1979	18.99304720551162
1980	19.940962110644193
1981	16.435059778316422
1982	16.311924778958094
1983	16.522047610015214
1984	17.14194427058416
1985	16.211676271475085
1986	15.872386378965874
1987	15.853941760164059
1988	16.89600263565295
1989	18.136470310148876
1990	18.96313791276712
1991	19.33642803695762
1992	20.626856924286294
1993	21.487767667181718
1994	21.048341359182903
1995	21.722434959914985
1996	21.11023077221441
1997	21.607942238334648
1998	20.80539700370288
1999	23.537883073239442
2000	23.594856453436552
2001	23.651715163659347
2002	23.778941664633745
2003	24.195325351219697
2004	26.879877647776983
2005	28.59389305806222
2006	29.077216927138743
2007	30.352045534195604
2008	33.7863213928727
2009	30.291775158888274
2010	29.647246105919358
2011	32.1752483200885
2012	31.7597066625805
2013	29.984425703701973
2014	28.476131239278917
2015	26.83908213943582
2016	25.93297647247772
2017	27.900416364208226
2018	29.619200230069147
2019	27.73929097417832
2020	25.170845753116815
2021	29.3187131228619
2022	32.580484313424094
2023	30.19999741756883