Year annual % growth 1975 11.31229220670538 1976 10.808379770858068 1977 -0.06660125957921537 1978 3.118974753582293 1979 0.23828393824220484 1980 10.271638943890025 1981 4.754312248906302 1982 -5.191631841866283 1983 -2.4124220079302603 1984 -1.017191676103124 1985 -0.20241791233517858 1986 -1.9821624918675411 1987 2.31289923559477 1988 0.8041908598043932 1989 3.666548702301185 1990 8.763980316356609 1991 7.940729216194285 1992 6.604330248937245 1993 1.8167267503620792 1994 5.99270717510349 1995 -2.005670154312483 1996 11.735991436287279 1997 10.420175326020527 1998 -1.9502011696994828 1999 -0.8793694199314501 2000 5.295697020198659 2001 2.110403372408882 2002 1.4678127377545565 2003 5.899219130347831 2004 11.971370882385088 2005 11.078371582288014 2006 10.40884372578654 2007 12.381998847009896 2008 7.316474177446878 2009 -3.7169287618381617 2010 9.608482662438675 2011 9.816104472185259 2012 2.5686688577350196 2013 2.72703980970887 2014 3.738792922263599 2015 4.794000714059337 2016 3.3136716631824754 2017 5.769358677704801 2018 5.387638003516713 2019 -0.06152324626120276 2020 -7.769369676374112 2021 10.786013700498856 2022 7.0439556900523 2023 7.393234548725175