Year annual % growth 1971 5.626254513972782 1972 8.32299700385191 1973 11.619296729162485 1974 7.599342324243622 1975 -2.202291765870598 1976 8.63158925264544 1977 5.237508589305875 1978 2.0943144131951357 1979 6.74412227170518 1980 1.7732200495264294 1981 0.9023745304345425 1982 -2.406667427673767 1983 3.999382041986294 1984 7.23881018759765 1985 3.335218529778132 1986 5.048403558555535 1987 6.999963676593524 1988 7.75724586529563 1989 8.24773241082471 1990 6.089142942208795 1991 0.5171390753244935 1992 3.1530530135805748 1993 1.5729104666284854 1994 8.668493908442244 1995 9.088636535742438 1996 6.886350918118936 1997 9.772230020231731 1998 5.2015524600458605 1999 5.524555255637594 2000 12.581013395189174 2001 0.5216827283711893 2002 2.943685941222654 2003 5.471912486512551 2004 10.840987045410117 2005 8.196350382287434 2006 8.821032934391184 2007 7.485533981347885 2008 3.4943730150385193 2009 -11.487932655482723 2010 12.011046707074541 2011 6.148023618183203 2012 2.4322867372377033 2013 2.5062662358541274 2014 3.3045161974434336 2015 2.5558564614778163 2016 2.103990279244371 2017 6.151689749230371 2018 4.457992142405672 2019 1.5492809320068375 2020 -8.879974877520496 2021 11.521428715751242 2022 7.263456332586898