Year annual % growth 1971 3.8189001269601306 1972 6.124820279630413 1973 4.948805435014506 1974 -0.837691437023409 1975 2.2674635702373678 1976 5.573390373783255 1977 4.226425525274465 1978 4.376446810273919 1979 2.3769869446139893 1980 -0.31219464470896696 1981 1.386594862394233 1982 1.4638248286564846 1983 5.661082508828912 1984 5.260765452335448 1985 5.177497710073837 1986 4.128118691937416 1987 3.387832168493148 1988 4.176892951902374 1989 2.915596976290786 1990 2.0140766064049984 1991 0.18051870665721026 1992 3.6800624505738995 1993 3.4836567258155924 1994 3.87431214748635 1995 2.950517302725288 1996 3.469918966841661 1997 3.765501842154336 1998 5.3110691473085865 1999 5.3810996347170175 2000 5.036863082163137 2001 2.47638263250343 2002 2.54294122735827 2003 3.164210250535305 2004 3.7699968425321657 2005 3.5413927531197515 2006 2.897359942519955 2007 2.4309139754418823 2008 0.15002862588131904 2009 -1.3054959251100797 2010 1.905912263946945 2011 1.7015504207547991 2012 1.3673436968015409 2013 1.7440094322041233 2014 2.8303038080354384 2015 3.3725499637723857 2016 2.4545310494755057 2017 2.638147217837016 2018 2.7410221305311495 2019 2.00176126667553 2020 -2.5222023310130623 2021 8.405354208648191 2022 2.5318387377500073