Year % of gross capital formation 1960 15.469766661178234 1961 16.114583611488335 1962 9.94023858788479 1963 7.944486235999924 1964 7.303303211658919 1965 7.844243577048701 1966 6.918449452854078 1967 8.043593893907975 1968 6.814268486770561 1969 6.913643195182013 1970 5.941851035578133 1971 4.182136455475762 1972 7.448979412180651 1973 5.224687383172184 1974 3.7704081762404593 1975 5.124403492642161 1976 5.357448777107342 1977 3.8462940883688583 1978 2.4443768539358963 1979 3.1980833965619597 1980 3.3567999267578164 1981 2.6309684218182654 1982 3.5531228650781723 1983 5.688622754491018 1984 4.432886379327923 1985 6.801228889024922 1986 16.37046770608069 1987 24.18821235511507 1988 19.651164185155867 1989 20.981443298969072 1990 17.865194648828936 1991 14.218001206261185 1992 10.36896070498429 1993 11.131289631116683 1994 9.628477589538525 1995 9.307070778235824 1996 9.194258881282048 1997 10.527899689189525 1998 6.825538894636267 1999 8.836178446622506 2000 7.577926498946439 2001 6.178166447965174 2002 5.93016951907856 2003 5.828017552774398 2004 4.67399836785314 2005 5.017899781041578 2006 7.952984963716081 2007 6.544032839608659 2008 8.404510106577506 2009 7.72651332649041 2010 6.978379670307067 2011 4.871837901833744 2012 4.04611689741363 2013 5.914700857572319 2014 3.2095453182027294 2015 4.460339997552351 2016 2.899096253192743 2017 3.7672496701991984 2018 3.9498464178233106 2019 3.51082095239262 2020 4.50619092713773 2021 3.532099047269251 2022 2.76580373253356