Year annual % growth 1970 5.924973172798744 1971 5.4052043632965905 1972 3.425735818605631 1973 2.0664729292390547 1974 2.46341592672033 1975 3.7149760863071606 1976 4.6613002541799915 1977 4.816165130350996 1978 3.009113588412731 1979 3.739149678234213 1980 8.901111733584031 1981 2.4927351326092406 1982 1.7894381193582518 1983 3.0279867924290897 1984 -0.6310311916740119 1985 3.9113884070732325 1986 1.3487151562599138 1987 3.923652885709771 1988 1.2087111230056422 1989 1.4935491209295577 1990 2.2315369705581105 1991 2.587177060833625 1992 2.5460856340638713 1993 2.174518190290513 1994 2.047552858383611 1995 2.508599915312246 1996 -1.2448584558463978 1997 3.186175143062613 1998 4.000412828748679 1999 2.1784659022101636 2000 3.3027337189990362 2001 4.500053465422155 2002 4.363384643290161 2003 2.778103413862226 2004 -0.47344100160643166 2005 1.2146494488590491 2006 8.326068377421777 2007 3.1250230721123557 2008 3.2114336188024026 2009 4.680008784234047 2010 0.9215479890381886 2011 -0.41551409500186764 2012 -1.1573824739548115 2013 0.018829737170150906 2014 0.5571667940761102 2015 -0.07769699110346551 2016 1.3495480232544708 2017 0.9259789329058918 2018 1.7232059444972236 2019 2.7893389009398817 2020 1.575944216697934 2021 5.049171369219451 2022 1.5599428548515988 2023 3.5588359772499985