Year annual % growth 1961 9.230769230941107 1962 3.3017778762865646 1963 -2.5257040637646213 1964 12.244897960223852 1965 6.230847802397136 1966 1.210598075797023 1967 6.017836193841802 1968 6.4415159394799275 1969 8.435040659229358 1970 3.422680469297063 1971 1.06320500482515 1972 1.4924801479204746 1973 13.502341687238257 1974 67.46430244083086 1975 4.905340930796356 1976 10.07329766395712 1977 4.329542031982683 1978 7.7183917876583195 1979 1.0415386230536114 1980 3.7484554932748466 1981 0.8794704506383226 1982 0.644641980999566 1983 3.566986072238393 1984 0.7084544302630178 1985 0.23006258881008534 1986 0.480073739326329 1987 -1.4069383571728338 1988 -0.41232712114533854 1989 8.00292491321018 1990 -0.7854655390149929 1991 1.8322898420332905 1992 0.7843318611695764 1993 1.9537638715267462 1994 -0.10533724420621127 1995 -0.34292694930819323 1996 -4.412659709752376 1997 7.085252210763031 1998 -2.321161767081236 1999 -2.8649164011812758 2000 4.004173549432181 2001 -18.462009341586125 2002 3.8726309117039364 2003 1.529630392247455 2004 -1.7612727470604312 2005 3.3354784142766363 2006 3.8405441298291976 2007 5.539965490927273 2008 11.151529445108267 2009 14.74626088122875 2010 3.396824693908357 2011 9.04876326588095 2012 11.551957741469195 2013 11.33923434826825 2014 7.903134551630828 2015 5.598186827210981 2016 -4.148572907271316 2017 4.941024706003887 2018 3.9002219467746357 2019 -2.840353286710396 2020 -4.037603422029591 2021 0.04676251978266066 2022 1.8038369403575132 2023 3.6986436043700053