Year annual % growth 1961 8.560800281153135 1962 30.153732173886624 1963 11.914757360254313 1964 21.934704525344387 1965 15.533018740549224 1966 3.163714319429573 1967 17.40052933994265 1968 -14.953793411952248 1969 -7.825439250344317 1970 6.5456101191082325 1971 -0.7116088143303045 1972 5.291064725338984 1973 41.30249231782935 1974 3.8236182440641926 1975 -15.04247149030246 1976 1.9003595242161424 1977 35.79973118623104 1978 -24.515019547787176 1979 -18.77960434902633 1980 81.60226011904987 1981 -4.401453448234307 1982 -27.1271154920818 1983 16.802245832193094 1984 -1.5253728105951296 1985 0.5796619098635603 1986 -14.347364502681131 1987 3.4995090425092883 1988 19.352380357215665 1989 -18.224892011613463 1990 -0.1636824282869611 1991 17.855566300000874 1992 10.877648090644726 1993 -9.615046229529511 1994 12.291335371369172 1995 14.371144362322141 1996 13.603349712492019 1997 22.256746754046517 1998 7.619951594009748 1999 19.45064284990754 2000 -4.744522639789139 2001 0.6973334659730028 2002 -0.13730618155612717 2003 3.4889939660691596 2004 8.190156630899452 2005 8.59973878285561 2006 4.438414814357699 2007 12.145645645645644 2008 10.166155658798488 2009 -9.135655428890885 2010 12.065806192737256 2011 11.504308595708125 2012 6.787262510034793 2013 2.350500170398732 2014 3.0917335056947763 2015 12.0017479195957 2016 4.067785109667341 2017 3.3016023081060837 2018 -15.098343971155586 2019 -3.8360034196929718 2020 0.10919562444435371 2021 21.17049721517033 2022 4.990081973089872 2023 8.85783008202256