Year annual % growth 1961 1.5910858992728834 1962 40.64213543953744 1963 12.917601770237525 1964 4.83234086378792 1965 5.644404487500182 1966 -13.471714988818533 1967 -11.68587205566422 1968 3.6971543526338735 1969 5.654511748451483 1970 8.90301446482286 1971 -7.145815975602957 1972 -0.490794459422645 1973 2.358157314292626 1974 37.19096679035141 1975 -19.6337694923061 1976 -24.885359957790627 1977 12.436080836830428 1978 15.704729949458567 1979 21.486143954193196 1980 22.44558536809049 1981 27.387802729395588 1982 1.5959051981761831 1983 2.9638395748689703 1984 -0.4370386379237772 1985 4.370937764907552 1986 7.146813939689551 1987 -22.888313471438238 1988 -0.6638328125801394 1989 11.91813159244326 1990 5.428530213960968 1991 0.9999992327285554 1992 18.97306809267954 1993 17.152440226777415 1994 12.812397711177553 1995 -7.738549053114127 1996 8.631641975361333 1997 13.347167377037096 1998 7.84984312301124 1999 5.512860648962771 2000 4.690033003635378 2001 9.766337943235754 2002 8.5118503937057 2003 -8.062595152208374 2004 6.29590882758761 2005 9.65808451704487 2006 10.795592640941123 2007 9.6657779275547 2008 2.732341498712401 2009 4.745866962522399 2010 4.881440522615449 2011 -2.6220154131037674 2012 6.564764997564396 2013 6.280394525070292 2014 4.314962857657179 2015 6.902063523012856 2016 1.949187488957719 2017 0.826700287255349 2018 2.8173570700440678 2019 6.344561691280546 2020 4.9328862390079 2021 0.061480955414140226 2022 3.8741853609804338 2023 2.301772140014677