Year annual % growth 1961 2.4862157285731996 1962 3.9224263648062845 1963 8.50992021839862 1964 11.262607834944262 1965 7.12001464698298 1966 7.14948669849376 1967 1.022271253630123 1968 1.0442693430039895 1969 1.780401151701838 1970 6.19433637384455 1971 2.56612599084292 1972 0.25937132085400094 1973 8.386300025415778 1974 3.628581854187246 1975 1.7918674052510113 1976 1.491940432758355 1977 -0.40382322383821645 1978 0.22697857875897398 1979 6.057611702690764 1980 -1.2929819690751572 1981 5.0659992526439055 1982 8.766060001195044 1983 5.400325988173279 1984 10.340668180724634 1985 2.3675804555122824 1986 2.7094796780277903 1987 3.5465355169916393 1988 3.3428620091106467 1989 3.4189006659258894 1990 4.760305422212909 1991 2.559958655690835 1992 4.393139731950697 1993 0.8358006187860383 1994 2.675047803807246 1995 2.786440786676664 1996 5.20073565776147 1997 2.613971768548538 1998 1.7060260346037666 1999 2.988732056678913 2000 3.0663421785484672 2001 1.7375668867777563 2002 2.8534897091785325 2003 1.1967923559889329 2004 4.654740738102731 2005 4.118584935977722 2006 4.175335200977457 2007 3.1580070504293616 2008 5.007986396318515 2009 3.039540852538309 2010 2.954311632113587 2011 3.9385787624148065 2012 3.732347920105923 2013 3.259221735904532 2014 3.40702919580292 2015 2.8208313660355486 2016 1.8067204622078918 2017 3.884260220478481 2018 2.970650162668619 2019 2.6111772847931434 2020 1.9170854597655023 2021 5.945541425613783 2022 3.95918363017131 2023 3.450021196691239