Year % of gross capital formation 1968 3.885820299243171 1969 3.794660242694374 1970 5.844932599402318 1971 5.365025563798032 1972 4.709259195732259 1973 9.185400732260106 1974 6.121331844332547 1975 8.478092447260632 1976 5.986786358427428 1977 5.962681478654977 1978 5.890823738132742 1979 6.946257624274519 1980 5.292635881464217 1981 5.166405529684859 1982 4.3099351308049405 1983 3.5908593437863443 1984 3.5435357549811557 1985 4.810836826612107 1986 4.617523333299251 1987 5.384211734499418 1988 4.322335272304864 1989 4.636031935063867 1990 5.849525686353286 1991 9.971189666364417 1992 6.419779953221719 1993 4.815351192617423 1994 5.790501631005819 1995 3.444874798031836 1996 4.140016794901847 1997 2.9884554564615837 1998 3.097835340601 1999 2.5269226387047103 2000 2.1861314100874543 2001 2.120293563199134 2002 2.080454134001678 2003 3.1120947687585385 2004 3.3307169228722344 2005 7.597658910858204 2006 3.7923112616749197 2007 3.019415821782338 2008 3.161156857083421 2009 1.803663873491097 2010 1.5317900526890613 2011 1.7372186672020364 2012 1.4379603541603874 2013 2.7877230242168447 2014 3.3287206502363 2015 2.1227672846218 2016 2.903004277745731 2017 2.9737514326004106 2018 3.3665500715982057 2019 2.8592577709287967 2020 3.2781201476302786 2021 3.5090513280433777 2022 2.559328494003716