Year annual % growth 1961 18.98572856216927 1962 8.13999097178511 1963 12.92959479693279 1964 8.352152404459474 1965 7.089590770587222 1966 -2.835652247251332 1967 4.960353750130793 1968 3.3440310611657935 1969 -1.24219695214137 1970 -2.2346288606450884 1971 8.080353428312478 1972 2.4860915818215403 1973 -1.539792613553061 1974 2.71472007008893 1975 -0.3304880383287383 1976 11.81935291711089 1977 12.318875150247635 1978 5.023592048040996 1979 0.3949016530913525 1980 3.461928476469822 1981 1.1200497209704565 1982 7.391282269688745 1983 6.7639908420829045 1984 2.8758121777889585 1985 5.774853015291214 1986 8.312271316313513 1987 9.695222431981179 1988 2.469747900831834 1989 8.226373440882242 1990 13.76645510850338 1991 -5.314343111961989 1992 10.060072481670417 1993 0.8386947306294985 1994 4.778369646897133 1995 10.59288859986178 1996 5.310404798130477 1997 6.800650800511818 1998 8.412895031425549 1999 13.358143360849994 2000 -0.3911357833754039 2001 19.064018708352037 2002 -0.2685611695334984 2003 5.691953291415118 2004 10.901156681271289 2005 15.019313591650345 2006 14.023776042629194 2007 14.266826081102167 2008 3.67722441477693 2009 6.562506817778967 2010 9.450687060974076 2011 10.395940302989999 2012 5.226072976576162 2013 1.9095862238765733 2014 3.2502327880543476 2015 7.061684601909988 2016 8.689069156439302 2017 8.109613383010995 2018 10.834952004639817 2019 0.6095330586232564 2020 -6.243555364068172 2021 15.578569258907436 2022 6.098332279224977 2023 7.762067271931784