Year annual % growth 1961 7.619835733733311 1962 3.8246234483522983 1963 2.5775468107861883 1964 6.816684714580617 1965 11.199781468092667 1966 3.7578419166022172 1967 6.198370886293162 1968 6.783226304342719 1969 3.738904635527419 1970 11.81942106759162 1971 7.68262181492841 1972 6.874583352561729 1973 8.285747170246353 1974 7.290575121062815 1975 2.877417619747618 1976 5.863452676974319 1977 3.990629622050207 1978 4.093199548359578 1979 7.967674928355734 1980 6.350969831221448 1981 0.14052381016998083 1982 0.6444421417817381 1983 -1.561883015302925 1984 3.338974439634356 1985 1.1835354383403143 1986 6.180845231124053 1987 1.7667259864483356 1988 -0.6054018782177621 1989 2.1821259630654026 1990 1.1942733036000703 1991 3.2876937550591236 1992 2.9794653208922597 1993 2.958119262201734 1994 5.3384490004949186 1995 1.7536447529711978 1996 2.910029255829599 1997 4.938123686962314 1998 2.4844363921557715 1999 1.1047690406862785 2000 3.980426848254666 2001 0.5887383449883998 2002 0.2361146681221271 2003 1.8183915390941507 2004 3.609982049281868 2005 3.9317125524667773 2006 5.5948477961147915 2007 4.900576133714907 2008 4.243702438346901 2009 -0.03348591073702778 2010 5.810613473644423 2011 4.971267288785228 2012 3.0289522046049484 2013 3.301269700706982 2014 1.7004929210367976 2015 0.9307820605932022 2016 -0.2407600988637455 2017 2.147248325550976 2018 1.6811758856152323 2019 0.8431160544100322 2020 -6.600460780947799 2021 6.389934587502964 2022 4.832103529898205 2023 2.6989024181952175