Year annual % growth 1978 50.075075075075034 1979 19.20960480240133 1980 5.2035249685269775 1981 1.834862385321074 1982 5.914610262436398 1983 2.6257396449704373 1984 8.504504504503956 1985 1.095981401528178 1986 6.0775295663599564 1987 9.18240941467947 1988 5.020564458941877 1989 12.518568534773891 1990 -16.01056168987037 1991 0.5001140424168113 1992 15.967651445695765 1993 -3.972538654391286 1994 -0.5107399223553841 1995 1.001004782707568 1996 4.269401055247641 1997 -0.8774459348707353 1998 -5.630663078209025 1999 -0.8728352432212318 2000 -9.409928345625403 2001 -3.9694057142951067 2002 -2.819253883369356 2003 8.024704395608268 2004 -2.3460654239259924 2005 8.496009023078258 2006 -1.5045988377189303 2007 -6.298390760809312 2008 -1.0263293168274288 2009 -1.8682164147820828 2010 -11.98232262580376 2011 3.8956393943646646 2012 -4.087258892248059 2013 0.42200654085688427 2014 2.0538346394808826 2015 -4.800076343162516 2016 0.28067361668003343 2017 5.327868852459019 2018 10.543798044984328 2019 -14.603365384615387 2020 -5.177440434301801 2021 -0.1590330788804124 2022 3.6635871296591347 2023 -2.99119032985044