Year annual % growth 1976 16.536580834071174 1977 18.25031700674991 1978 11.079652070111564 1979 5.927340118319108 1980 5.670871588688911 1981 1.7081850180262705 1982 11.490559503292246 1983 7.268385211821936 1984 4.5055653051651205 1985 5.912652726427808 1986 1.7339791119431283 1987 5.44585701893854 1988 10.506604265118895 1989 6.903309178903399 1990 8.95211927144122 1991 9.916527129700697 1992 3.1768123361462415 1993 -4.638748918538099 1994 6.832822091559223 1995 29.064920307466195 1996 3.7116053177488055 1997 2.487970794889165 1998 7.209560283900558 1999 4.176882772654068 2000 8.022415987793181 2001 5.5436424189006175 2002 3.083490967109242 2003 4.359704828408596 2004 7.193190783029223 2005 3.9099108790811528 2006 3.915921111595594 2007 9.748058490405327 2008 8.213851222408337 2009 -6.525817435000619 2010 4.8548508589822745 2011 -0.8910137217799985 2012 -2.7727712047519333 2013 -7.0041742579887085 2014 -0.04069738055275707 2015 3.1288191123661306 2016 5.138051292594554 2017 4.832466051542255 2018 5.121555507985036 2019 3.854965733597382 2020 -6.432077056921742 2021 5.566270806390875 2022 8.566998732845477 2023 4.24602284210502