Year	% of GDP
1977	0.4698065343003371
1978	0.4663413882516094
1979	0.5072939963204166
1980	0.566651627377354
1981	0.4318048815927435
1982	0.5260030149349503
1983	0.6722214097917331
1984	0.6895313070611362
1985	0.6798369001053589
1986	0.6668880856804961
1987	0.7645941265402549
1988	0.7631045446993032
1989	0.8488635193853105
1990	0.7009348817774769
1991	0.6655083687869026
1992	0.8325684802159152
1993	0.9656626199697547
1994	0.9076003470168437
1995	0.6937075095465661
1996	0.5659416892869137
1997	0.7074186865139226
1998	0.7110195947113745
1999	1.3019009160993233
2000	1.286767516573246
2001	1.116949632923342
2002	1.1759553781207592
2003	1.0836410404806966
2004	1.2356455084343607
2005	2.4849275845593213
2006	2.4397335339286745
2007	2.3318316954048415
2008	2.2552263134169137
2009	2.3504434636605183
2010	2.211310916350246
2011	2.307133936938245
2012	2.2359756489997507
2013	2.1192126729540552
2014	2.146475681584501
2015	2.5545767062298768
2016	2.4929627071377833
2017	2.592065412377261
2018	2.7403213717073602
2019	2.756202963949785
2020	2.532204745152041
2021	2.606596981805258
2022	2.615414756955742
2023	2.6340686776539037