Year % of gross capital formation 1970 0.12330439039172178 1971 0.13828072889519608 1972 0.1692091871626787 1973 0.20050694222784063 1974 0.5157062604441719 1975 0.5805532684436507 1976 1.2741674000135936 1977 1.2200690261916372 1978 1.041371325728821 1979 0.9490645230288421 1980 0.8656039285523551 1981 0.5194619036181828 1982 0.6543814475932215 1983 0.6548266529175782 1984 0.5834877543886884 1985 0.6369197931568509 1986 0.675211353166917 1987 0.8483303937551528 1988 0.9286373499953177 1989 0.7989440876710838 1990 0.7292271607274639 1991 1.0851489948182202 1992 1.7156569156695303 1993 3.069398499499225 1994 3.1596624354482614 1995 2.981123671676995 1996 1.4387729751245435 1997 1.7241379712611755 1998 2.35874048045553 1999 1.765877717342067 2000 1.1793180965231231 2001 1.5045563837204774 2002 2.0106179991049693 2003 2.5071244035352387 2004 2.958567598248211 2005 1.9618255683646026 2006 1.4352861139869144 2007 1.747160002947261 2008 1.5016983582465897 2009 1.79019150656699 2010 2.2074999491373664 2011 1.493497583492418 2012 1.3673469728353076 2013 1.3722919407788354 2014 4.260303120132301 2015 6.820193399005696 2016 30.8884957918933 2017 7.366352222810557 2018 6.227408881203281 2019 4.1815124455247545 2020 4.991132773809668