Year annual % growth 1971 9.08157587311878 1972 13.496583871620714 1973 20.342060634901856 1974 42.376999228145394 1975 27.698424908849688 1976 5.180172387501258 1977 3.8695531107706387 1978 13.743755506015674 1979 8.481236021644804 1980 7.007803186118238 1981 9.544202677292276 1982 7.847298993103678 1983 3.360069146248378 1984 -2.0573115554509798 1985 -1.3800333379720513 1986 -7.409106637980585 1987 -1.767145266121645 1988 0.8897684789512823 1989 1.3668028311123237 1990 1.680497894256618 1991 1.5104584049148997 1992 6.006781844417006 1993 1.3671742593705005 1994 0.6119208196596446 1995 -1.5677873433279643 1996 2.479028799120769 1997 5.32340767684984 1998 2.6161420770559545 1999 3.5850934118839177 2000 3.1315964316702036 2001 3.648522852089428 2002 3.4441315878718513 2003 3.4628032788301084 2004 9.695733785832132 2005 8.160871712947198 2006 8.675211453589938 2007 8.631850486750153 2008 8.887215983528023 2009 7.020718865926057 2010 8.74467030005954 2011 8.870435715835342 2012 6.086608473215776 2013 6.869727818264153 2014 4.8729703800135695 2015 3.5349377205751153 2016 1.5552227977293995 2017 2.6971870591538334 2018 0.41587932777736114 2019 3.566075502457423 2020 -1.917781905945347 2021 6.2714108711118115 2022 4.805821630716707 2023 4.70652557105349