Year annual % growth 1961 -1.1744065988621344 1962 1.7377201693153523 1963 10.389026656958649 1964 15.290278019192911 1965 31.84718094873631 1966 7.761982195933285 1967 -0.381564609024025 1968 6.1823580145373 1969 -0.15472950845210676 1970 7.676114186389384 1971 -4.289906814015794 1972 15.438095871388128 1973 20.794522720140108 1974 17.822190601614068 1975 -3.907779181580622 1976 -6.0608842591455385 1977 -18.257557947677213 1978 22.014533644310916 1979 29.451463370447044 1980 37.18445451527029 1981 17.721355285327107 1982 -37.85199018440253 1983 -33.790949799441975 1984 17.807243926906295 1985 10.983532254802839 1986 -7.582357745583408 1987 5.140668729331182 1988 36.718968898416364 1989 21.257300952717245 1990 19.744792325768472 1991 16.77840508440616 1992 20.861157278069427 1993 -1.2500312552739103 1994 18.088160415081035 1995 -17.497019920163297 1996 18.10294675206822 1997 23.554203905411427 1998 14.42787589128578 1999 11.774815867948746 2000 21.03133488252702 2001 -0.2983703901332575 2002 3.613854175844125 2003 3.0123130201054664 2004 7.026792961775641 2005 5.925822627716968 2006 7.7071869525906465 2007 5.742522832049076 2008 3.811546274405231 2009 -16.386825561465727 2010 17.110818969916394 2011 6.235032812907164 2012 5.647636684953255 2013 3.629788147927755 2014 5.961838088554742 2015 4.948894847891523 2016 2.533581902299815 2017 5.648599986434007 2018 5.604095229380832 2019 -1.0809680659511827 2020 -11.991217514717391 2021 15.049717175977719 2022 8.304823416396871 2023 5.715160738108736