Year annual % growth 1971 5.356741285146228 1972 9.187331495289271 1973 11.31757281051678 1974 2.898923140485522 1975 -6.892430749078343 1976 11.172108417173646 1977 4.117926459446977 1978 5.389883234516816 1979 8.339460018616691 1980 0.11747460061224047 1981 0.8825791509999021 1982 -1.367270458276053 1983 2.136888984545564 1984 10.641986474274361 1985 4.591652393303974 1986 6.413502427610652 1987 6.655600184404335 1988 8.59367144618308 1989 8.877083548288908 1990 6.20655641391383 1991 2.2780844486770917 1992 4.766467840932535 1993 1.1488428005972793 1994 9.340246494361423 1995 8.20899183872352 1996 7.33984880900509 1997 10.38375742535041 1998 7.438100227565684 1999 8.010316544195149 2000 12.22046268639889 2001 0.40418531618824716 2002 2.3927489834697298 2003 4.1427060355725445 2004 8.821570053255329 2005 6.890158577094823 2006 7.929570463504248 2007 5.4825117701625885 2008 0.6370677404405711 2009 -11.444996935601722 2010 11.356693305594945 2011 5.732040017774835 2012 1.3812460498469932 2013 2.2645270865744322 2014 4.317559484262219 2015 5.1993891511007035 2016 3.021697246950069 2017 4.979787679023715 2018 3.7401344232137745 2019 2.4807393716798316 2020 -8.39560408246659 2021 10.00584246608642 2022 8.260719050072638 2023 -0.10103554662065051