Year annual % 1980 -13.508406724169603 1981 2.0199181807482063 1982 -0.3778474790428987 1983 0.5754605852096688 1984 6.934182976786829 1985 -1.4612202201766138 1986 -2.6150982639776146 1987 -5.300146921753338 1988 -4.1394648467974235 1989 -0.9881057116090375 1990 8.955904561556835 1991 0.616260807490292 1992 0.0631026223703941 1993 -1.7254894752603178 1994 6.453975447090727 1995 -1.3948779329078178 1996 -0.07514366295754371 1997 2.4687560877365797 1998 -1.1535157059403502 1999 -1.9881645534904209 2000 3.364842774573205 2001 -5.829386091058737 2002 -7.5861251128351626 2003 1.7055058695656982 2004 1.4594489148584984 2005 2.7843702211117716 2006 5.886420478093839 2007 0.43312766411762027 2008 3.070110439209998 2009 0.5710868584837101 2010 -1.1190059967074717 2011 0.7424532271807607 2012 -1.3527535591401119 2013 -1.9081546294229383 2014 0.6941550328754147 2015 -1.9974308733112451 2016 2.1825958526285945 2017 3.7454463265367792 2018 0.4569823344887425 2019 0.8311277367459837 2020 -7.2118785341656775 2021 -3.851095401639938 2022 -0.45545483659607555 2023 -0.16006710121936862