Year annual % growth 1971 4.141206933196727 1972 5.294487182405021 1973 4.877985667115709 1974 1.1373705025256697 1975 2.8849725393651653 1976 4.061009991855059 1977 3.121495517236511 1978 3.8248434924050656 1979 3.2386848936006913 1980 1.2758774521439022 1981 1.5921887040222629 1982 1.67953228307951 1983 3.2545679399206477 1984 2.990309497785887 1985 3.7379634650659455 1986 3.9384885056030328 1987 3.5270965852902663 1988 3.8754282993426017 1989 3.252014954678174 1990 2.862216960938852 1991 1.272596080034944 1992 2.4051361465528913 1993 1.695889812432256 1994 2.6049002334551403 1995 2.241755050876833 1996 2.6668528456372087 1997 2.6825343596992326 1998 3.0022464049981608 1999 3.771722594018186 2000 3.7117755926536375 2001 2.5951608053576365 2002 2.4210880284046397 2003 2.31051584561159 2004 2.8936608974821354 2005 2.793260231372315 2006 2.615587670032312 2007 2.7305607561604006 2008 1.1670740870372924 2009 -0.35992325227289257 2010 1.6192818077164617 2011 1.0496472696058845 2012 1.0126688217412863 2013 1.2216402898730365 2014 1.7724058997983292 2015 1.9984821765155658 2016 1.9592060661321824 2017 2.157505954816699 2018 2.176726875132843 2019 1.9457640026524956 2020 -3.5425684464090637 2021 5.6785858180561775 2022 2.7394223488922336