Year annual % growth 1961 2.152127313767906 1962 4.213806419276821 1963 9.977651925913861 1964 10.747315027002458 1965 9.187881427829296 1966 6.512247259535826 1967 2.1708799815443314 1968 0.1620486219024997 1969 1.6044831565380235 1970 7.016798267812646 1971 2.787406795424772 1972 0.029175994887097545 1973 7.586238629727717 1974 4.1297529089984835 1975 2.3201359967803796 1976 -0.1260777251247447 1977 -0.42947885852117906 1978 0.518537778376853 1979 4.984866912175519 1980 0.12416634916993985 1981 6.348557647195378 1982 8.968987180747618 1983 6.315536198007294 1984 10.372951946558942 1985 2.9122046056293556 1986 2.5007073036056937 1987 4.575881771209282 1988 3.2105353838838226 1989 3.802857899626673 1990 4.894479338042473 1991 1.4791207017860444 1992 3.0615928430821384 1993 0.06892046940008356 1994 2.614620289140859 1995 2.7371579671534363 1996 4.162966194128387 1997 2.324480597358928 1998 1.461446501725888 1999 3.2071524773804754 2000 2.70170956747873 2001 3.64645753423558 2002 2.840024705094123 2003 3.20172624581609 2004 5.258207110233215 2005 3.471835816636599 2006 4.437852405671421 2007 2.8755502536288446 2008 4.833558140736244 2009 2.910218469090438 2010 2.9675633605228455 2011 5.137649351647113 2012 2.703734841644547 2013 4.348282086542412 2014 3.650569872395664 2015 3.201733323722422 2016 2.0580442222334625 2017 4.519856098671255 2018 3.2639977594046883 2019 2.580654934672964 2020 2.5081774704859043 2021 5.709462489321311 2022 3.1961036965300025 2023 4.279616122980798