Year % of gross capital formation 1960 2.9832782583203947 1961 16.528545215014024 1962 18.814670379401445 1963 15.454978586830133 1964 12.77491806371896 1965 11.179787942829332 1966 10.238076884919616 1967 7.910700495626161 1968 6.222117534854366 1969 5.684140625473252 1970 3.618242553400566 1971 1.652748757197476 1972 2.5143505019420442 1973 2.7638734621090286 1974 0.42273276400961274 1975 10.602932514959349 1976 0.7425816791922525 1977 0.5016561737408559 1978 0.12429924616920301 1979 -0.7313670578247722 1980 -0.11764027294143913 1981 0.0068007795346532 1982 -0.03583235336615159 1983 0.34458954213961 1984 0.3040865323266583 1985 1.6347617320368337 1986 0.1046111203979665 1987 0.5806100213095642 1988 0.8614471549834017 1989 0.8897058389468397 1990 1.2692287886994167 1991 1.4004825887210057 1992 1.1806873882900466 1993 1.2882975171792856 1994 1.0581951009006791 1995 0.7909569756842403 1996 0.8372413145377089 1997 0.5106290006737839 1998 0.4583952899893569 1999 0.41764084107050814 2000 0.2716286844919429 2001 0.3239533504374693 2002 -0.04173669942621838 2003 0.44880600423736944 2004 0.2570920463623775 2005 0.6000695298367874 2006 0.28972628051515253 2007 0.2774438112704912 2008 0.19933042483822266 2009 0.1946839340852453 2010 0.3382770323775932 2011 0.24065395364693656 2012 0.1665972138950409 2013 0.10561755833589984 2014 0.37607621789462475 2015 0.08753595288002955 2016 0.30184389632777264 2017 0.11247416994942445