Year annual % growth 1971 1.7372314041099486 1972 8.331762256149602 1973 5.899813113274746 1974 1.7485965210637886 1975 3.0918165637323654 1976 1.8865330084266532 1977 -0.5865674218114663 1978 2.3301974262210905 1979 5.821710208511519 1980 2.5159436529673513 1981 1.4650037588912284 1982 5.137070881699188 1983 3.1080031080031034 1984 3.2982247068926256 1985 4.07851653292164 1986 4.125711118718115 1987 4.694887128588874 1988 5.5564693392347095 1989 4.671851316702785 1990 -0.2936758197886036 1991 -3.0241333441919807 1992 -4.184978865156893 1993 -2.6644852167815856 1994 2.6008524432705116 1995 4.926497476779048 1996 3.768140186525031 1997 3.4983072706754825 1998 4.8247663551401985 1999 3.344601706353629 2000 2.1016559227395817 2001 2.6827207435572404 2002 2.499485702530336 2003 4.126665551652991 2004 3.7510975949285807 2005 3.174767001413997 2006 3.920372130245582 2007 3.501982981017292 2008 1.9679693458082994 2009 -2.9214323500976036 2010 2.9961948607131177 2011 2.8944391739035353 2012 0.38476200608172917 2013 -0.5219418710423867 2014 0.6063565340909065 2015 1.6069112183757994 2016 2.42913221704994 2017 0.7563103585691096 2018 1.7116457549670514 2019 0.7330371399968669 2020 -3.7617142904076246 2021 3.2413610644090483 2022 1.843417017301661 2023 0.418827769255131