Year annual % growth 1971 7.403219367209218 1972 8.266224049290031 1973 9.872184925238003 1974 8.02106130873355 1975 4.871688568369763 1976 6.48639630292476 1977 4.921831858481497 1978 5.370097077208882 1979 8.349579684787287 1980 8.519822562429951 1981 1.492118509574226 1982 1.1691613262362353 1983 0.05102748447318106 1984 3.698431169709451 1985 2.8949292433024993 1986 4.030727461874079 1987 2.7184179964403654 1988 1.8295036035531211 1989 2.3707793388657166 1990 1.0128754155468869 1991 3.624779788781467 1992 3.2225496540621634 1993 4.26806951051519 1994 3.518055812553584 1995 0.08172182276476292 1996 3.4822811032658336 1997 4.744254311026765 1998 3.175253259666107 1999 1.4731247687131912 2000 3.7159169812930344 2001 1.0372781619971931 2002 0.8514588890652846 2003 1.7893753929150762 2004 4.654246059919203 2005 4.217530266454972 2006 5.34617806998601 2007 5.525697284324991 2008 4.048174203723647 2009 -0.24516804561699246 2010 5.89962488412732 2011 4.3858098645633845 2012 3.1744783281992994 2013 2.7606739067180115 2014 1.728998660119501 2015 0.7703304099874799 2016 0.39506833739255853 2017 1.984560458891366 2018 2.3231759617891328 2019 1.1018962591607533 2020 -6.504175987707939 2021 6.35435134301234 2022 4.537990284061081 2023 2.4275913972613665