Year	% of GDP
1977	11.84825818207252
1978	12.607635604669982
1979	11.487728430520866
1980	12.113398690334133
1981	5.983590933185513
1982	5.4595693066273565
1983	6.453881017342016
1984	6.924716072523201
1985	7.195253333758494
1986	7.837001459276427
1987	7.741440342937701
1988	8.24066803243524
1989	9.891267573800738
1990	10.071564922950989
1991	9.81054597257909
1992	9.966043944635596
1993	10.096702176162978
1994	8.441166420265068
1995	4.532173423531853
1996	4.0334640022390085
1997	3.488807397565826
1998	3.362525402050388
1999	10.711141101210709
2000	10.813477167171094
2001	11.778123126914174
2002	10.773154092721631
2003	10.857157998744382
2004	10.027308993873033
2005	8.750698521553012
2006	9.666558021606079
2007	10.007963225560559
2008	10.315761050402118
2009	10.043774678444139
2010	9.204114853091806
2011	9.360874922488337
2012	8.65473577822976
2013	7.810749746417345
2014	7.645249020580946
2015	8.52716967624578
2016	8.14447356502125
2017	9.819765264706472
2018	11.044545329226677
2019	12.145611192514115
2020	9.219519050296826
2021	8.777022124513278
2022	8.507118942600874