Year annual % growth 1971 5.5522170034393525 1972 9.21282217908211 1973 10.965020674357561 1974 2.610476215489129 1975 -6.774228817486531 1976 11.799111897633765 1977 4.534232069491594 1978 5.178132675278519 1979 8.18512827614191 1980 -0.2771386159998883 1981 0.7953684118463968 1982 0.10300138004110693 1983 3.220779646624635 1984 10.659916763410166 1985 4.706392551271989 1986 6.6118775424908875 1987 7.029580885452518 1988 8.455974177142679 1989 8.183423899351368 1990 4.541194878370078 1991 1.1929410379818677 1992 3.2556782849054002 1993 0.8112523804972369 1994 9.848735448081428 1995 8.96609664698309 1996 6.699730372184362 1997 9.631368186540357 1998 5.898092611589874 1999 7.799420208851899 2000 12.102337964771408 2001 0.380937528090584 2002 2.403809719624107 2003 4.51113890603736 2004 9.331608943362752 2005 6.881873449255394 2006 7.893820662246668 2007 5.434401379827108 2008 1.0679671175067824 2009 -11.333113677765468 2010 11.491393045416203 2011 5.511406639310195 2012 1.4808736392813984 2013 2.4561868315979325 2014 3.7511360118662367 2015 4.365868234138929 2016 2.370906644320712 2017 5.139718478568085 2018 4.008952926968661 2019 1.2586376904856849 2020 -8.448974917913802 2021 10.455933516130216 2022 6.675295238473481 2023 -0.38314293823862045