Year annual % growth 1961 1.8083704390220419 1962 0.8001310625980835 1963 -4.705834804086393 1964 20.605026488433282 1965 6.007560730011917 1966 4.795627625357085 1967 22.898347938081656 1968 6.318894571618756 1969 3.4121884973518775 1970 -5.464815254772901 1971 -0.5713503344688604 1972 2.9758253271763806 1973 5.400345266952371 1974 15.188705359939547 1975 6.074260989253162 1976 1.629377895015736 1977 6.500334413263232 1978 12.729603849167972 1979 16.105347031171704 1980 19.599506891142113 1981 -0.7911877340189193 1982 2.489142756119975 1983 -2.74832514556185 1984 -16.679016682737185 1985 -13.672443500422077 1986 10.006333251948817 1987 27.91130351662929 1988 18.903856375642818 1989 14.682623652433662 1990 9.873127299055781 1991 -0.8866562735574348 1992 8.669213334012383 1993 10.947001523571771 1994 13.614879322395666 1995 15.091653509405049 1996 15.84179868777997 1997 12.779772147313182 1998 -13.176437082010196 1999 1.6989917747320078 2000 11.79466153265895 2001 8.61190905816997 2002 7.093148496666487 2003 5.308672851377395 2004 3.2949758960208726 2005 3.727426516237898 2006 0.3928386090200604 2007 -0.24621793620126198 2008 4.781595172086469 2009 -2.3471854686676465 2010 20.74706238809054 2011 -0.9361493202737989 2012 6.754689695217863 2013 7.006536078349384 2014 9.898246430443905 2015 15.0089404173482 2016 18.813173780962586 2017 15.145034016807756 2018 14.64456789993747 2019 2.33294456794259 2020 -21.55442140194654 2021 12.816338161555493 2022 14.016625085239468 2023 0.9506976476804567