Year	% of gross capital formation
1970	7.166165168245925
1971	6.5925431322082435
1972	6.865567398434942
1973	23.657270578405402
1974	8.745827106883953
1975	13.33768757636663
1976	8.86671521144095
1977	8.74257620244599
1978	6.986133413094568
1979	7.684787703932021
1980	7.105946086800646
1981	6.536150986861003
1982	5.279874079778872
1983	5.143094619545492
1984	4.8411193600742415
1985	6.2750989665803285
1986	6.420194007142298
1987	7.213390068868803
1988	5.414921301759133
1989	6.216438070933307
1990	6.535629185676606
1991	11.473252719746414
1992	7.883971999423673
1993	6.688599374403949
1994	7.23189750711611
1995	5.201163282083412
1996	5.299684685452918
1997	5.104906647331197
1998	4.902355241712008
1999	3.8087400504261333
2000	3.3702593973842876
2001	3.4405821866632054
2002	3.405210145202152
2003	5.061567745662179
2004	5.533870806741287
2005	11.406135436051077
2006	5.442651533844451
2007	4.507868429727325
2008	4.093753641556126
2009	2.782878343354626
2010	2.1758749760447165
2011	2.1901336614166933
2012	2.283906312580739
2013	3.2170922991960995
2014	2.990968987687379
2015	2.8774776781642024
2016	3.9142743906627495
2017	4.210530664913121
2018	4.467256505716137
2019	3.890977963241673
2020	4.979852589627687
2021	5.621451705068097