Year % of gross capital formation 1970 22.962722371970795 1971 19.438859865636054 1972 12.94900551576105 1973 14.438060786245108 1974 3.0801190894840937 1975 4.466700996209639 1976 1.535432082776594 1977 1.665448381869726 1978 5.1908019431486805 1979 3.671002062237879 1980 4.716031346893343 1981 3.0748745290838384 1982 4.882127371279522 1983 5.3183308325673275 1984 6.41210473354496 1985 4.331491033526424 1986 4.983890188109949 1987 9.508514686381845 1988 7.358521015216571 1989 11.992096551981561 1990 10.170596916025993 1991 9.979396069769388 1992 5.462881722930293 1993 10.26104110725599 1994 19.753797128397522 1995 12.438904290154007 1996 8.941213266500128 1997 2.369707504948347 1998 2.5170072025170134 1999 3.917265683772078 2000 1.0649480302140817 2001 0.7561931459000174 2002 5.349450467943603 2003 -0.7407224509928678 2004 2.397188135532932 2005 2.4568740308054235 2006 1.2567997685990955 2007 1.7171477239236528 2008 1.6412261426334 2009 2.2997166575700185 2010 2.4894465313868195 2011 1.4314684207606554 2012 1.486972572154688 2013 1.6984958261127534 2014 1.7394904115800132 2015 2.3494881480013734 2016 1.0999051114870735 2017 3.3445782375719006 2018 3.601521903054682 2019 3.13452930016428 2020 1.7483108241685554 2021 2.9032873019681213 2022 4.062664267550402