Year annual % growth 1971 7.7295550592944835 1972 9.377142660107609 1973 13.502263518429402 1974 10.959701224678241 1975 7.638084392512567 1976 5.109346096360795 1977 0.7680641274045996 1978 5.180611009320103 1979 8.793211301201922 1980 1.8031367572879162 1981 4.03711603849392 1982 -11.67332859915237 1983 -19.14644772091421 1984 1.5359465484926886 1985 1.7653029011445796 1986 6.025421540695291 1987 11.773081463822038 1988 4.228139159869173 1989 6.904762334497619 1990 -11.731008701360182 1991 -0.3113870198424422 1992 9.149649981290537 1993 7.349360757167389 1994 13.365304790407691 1995 -10.546840716452465 1996 6.2135093357567115 1997 11.433366547074144 1998 4.60325855983956 1999 -6.434963631329921 2000 2.994866733741503 2001 -3.387264140016512 2002 -2.6260432083745826 2003 1.8313255198067537 2004 9.448539149887296 2005 6.467432491730989 2006 9.746839912729016 2007 11.61089599385339 2008 9.672910142344662 2009 -8.3927676750518 2010 13.61129808572619 2011 9.302669612150922 2012 2.5592113124508273 2013 2.744098871483729 2014 -1.0677228673041412 2015 -3.7144571604450647 2016 -5.039368386166615 2017 0.8315286646759006 2018 2.0748075311861385 2019 -1.0892979919668448 2020 -11.24147928352997 2021 15.662178893513598 2022 4.963707151929071 2023 3.2445382742196642