Year annual % growth 1961 -1.8454801385822037 1962 0.796685786976397 1963 19.72810622815213 1964 10.245576975115227 1965 -8.88622754552054 1966 6.125131440413199 1967 -2.3036908597545107 1968 -6.566937119523331 1969 3.7449118055615287 1970 14.337034546091942 1971 1.2607345146101352 1972 1.1187297003564538 1973 8.922198430027791 1974 6.405635648929689 1975 20.72890284740066 1976 -13.492021419188674 1977 18.090452257375617 1978 0.010378829210694107 1979 12.743877129171466 1980 8.127393967581597 1981 21.567621766934835 1982 -13.172858267359288 1983 6.43477033681674 1984 18.616727439998826 1985 0.6333830078577591 1986 -5.895964460085949 1987 -8.17350250395394 1988 3.066439520355118 1989 1.6528925647832295 1990 3.6585365852904346 1991 1.1764705693636301 1992 -4.651162774568178 1993 12.565070288355813 1994 1.225504321035615 1995 4.313003285819647 1996 -1.7962479506426376 1997 5.302348545120324 1998 1.7350157641430144 1999 12.75968992337799 2000 3.9873504546099667 2001 -1.1251757224779624 2002 2.6765492194283524 2003 1.2805587944097852 2004 17.241379292875394 2005 23.82352941957177 2006 21.77355503244847 2007 28.803641083330604 2008 26.291441791618638 2009 -17.88766788326332 2010 -3.1598513040207337 2011 8.406909792629946 2012 10.800283276535254 2013 0.5893909679349747 2014 0.09765624504571235 2015 0.9512195119632167 2016 -2.2227591202452714 2017 52.50803064321869 2018 7.246804325288522 2019 -8.581644814354632 2020 -18.72430047018983 2021 0.4689042448171392 2022 24.293785310734876 2023 1.1239226648031604