Year annual % growth 1971 4.50487074870469 1972 11.05646199940469 1973 14.123264432141653 1974 3.7054853946258675 1975 -8.285391766873403 1976 12.86701666770395 1977 2.1399341899859223 1978 2.2856011992763 1979 6.99617295966209 1980 -0.15035595709527172 1981 3.3914961169822817 1982 2.7788154538017835 1983 2.6265941686925913 1984 6.471933234947258 1985 0.33260041722422784 1986 2.737373356538498 1987 4.966120446321028 1988 9.632796456502987 1989 8.151717083532617 1990 4.573915401237542 1991 3.0553907903132966 1992 3.6668218048508976 1993 -0.44231602999035147 1994 8.327624196890838 1995 4.991947244436275 1996 4.975139623645333 1997 9.490563471345709 1998 4.137779245075393 1999 4.849271879299849 2000 12.396939807132611 2001 0.38017664231686865 2002 3.448369543945674 2003 1.6153434930679111 2004 6.193385434393804 2005 5.511088341257391 2006 5.700622512325722 2007 5.436045382673598 2008 1.8076240910838521 2009 -11.27529437384419 2010 10.43908459510638 2011 4.631280749461354 2012 -0.4868505648387327 2013 0.3526552998768864 2014 5.196763688044072 2015 3.7216746688233115 2016 6.201858824233369 2017 5.470995120571345 2018 1.077318324379533 2019 2.388950002914953 2020 -6.258737035131205 2021 13.855828628324971 2022 4.919274341595539 2023 -3.309815348894446