Year annual % growth 1981 12.83771857349285 1982 4.249046161436553 1983 10.113074537992063 1984 -2.1022734340633775 1985 12.489866232406087 1986 6.550514665952761 1987 5.584778023908555 1988 -0.7270371900621484 1989 0.07647865646561058 1990 5.792430716705226 1991 -11.471833693360708 1992 -14.859841329417264 1993 -12.521121816251565 1994 -11.850603226165134 1995 17.529809493701975 1996 -23.71227971997365 1997 -29.721001901514654 1998 43.94374081589811 1999 -6.334969941503417 2000 2.216993780653425 2001 0.9892527714309836 2002 0.5027694215637695 2003 8.062431736132524 2004 4.77590290797707 2005 0.7489009491969796 2006 5.626534908197868 2007 -1.017894460052318 2008 1.8959333906587403 2009 -5.863949778738302 2010 2.12596933123433 2011 2.3371989295272186 2012 -1.8375174337517421 2013 0.6528611515646645 2014 -0.08540131560373254 2015 1.8013181410396726 2016 2.1899481656755455 2017 4.284676340574052 2018 5.346434082784739 2019 2.0032140428950953 2020 8.335403651435186 2021 0.3809001773059606 2022 5.475627967102767 2023 -0.44005388414908