Year annual % growth 1971 5.69669423159111 1972 9.153937186784944 1973 11.28245318938555 1974 2.640598024313533 1975 -6.829082135308269 1976 11.802191974296235 1977 4.6391736743822065 1978 5.396816382494691 1979 8.35852966938235 1980 -0.15790125879665595 1981 0.8695923655240421 1982 -0.12224413344851826 1983 3.2348291628089214 1984 10.620413930966777 1985 4.470668518246541 1986 6.864040450089945 1987 7.4924849574286725 1988 8.635344483118004 1989 8.15884624907845 1990 4.610367151266843 1991 -0.2782111136327927 1992 3.85662025708406 1993 1.3651722614642239 1994 9.463173287603539 1995 9.506632742922022 1996 6.81732354048728 1997 9.810920483531092 1998 5.975516562033505 1999 7.408016089790365 2000 12.326998512409531 2001 0.405143606118898 2002 2.7655466532911674 2003 4.847205111198875 2004 9.962058463341322 2005 7.454757922668236 2006 8.703978160101272 2007 6.821584593228053 2008 1.9217599369052465 2009 -11.726481883025144 2010 11.377616580595458 2011 6.011482924094764 2012 1.8813308190840559 2013 2.707128894293092 2014 3.913318306849618 2015 3.701475219585177 2016 2.3334608844359366 2017 5.209716176640285 2018 4.060132034569676 2019 2.1089399746058604 2020 -8.21903488898927 2021 10.503171806103737 2022 6.704020837843402 2023 -0.702731153887882