Year annual % growth 1966 13.235495755650703 1967 1.9929029827432316 1968 11.71181817724323 1969 4.367423222564582 1970 8.574952350222446 1971 28.399625872165615 1972 22.944169303054608 1973 -9.052194189729306 1974 15.150713925517806 1975 0.7102810848986962 1976 17.02877620524275 1977 7.056774493206589 1978 7.472295597297148 1979 21.483487987480984 1980 0.04868091943794184 1981 3.4753601060819364 1982 -6.925506000556297 1983 0.9310018898022463 1984 2.699321129257811 1985 3.307225539176244 1986 5.2266190046929495 1987 13.370273096744057 1988 21.445714208843825 1989 4.956622072718034 1990 4.401210432833764 1991 -0.8788019296977296 1992 8.019966934725971 1993 3.370271250228967 1994 13.536374273252534 1995 1.334481256277158 1996 -0.7751416172233405 1997 10.111887093712426 1998 5.172664514220983 1999 5.570135752931279 2000 5.759314378107504 2001 19.224061335808898 2002 -3.5121534355925377 2003 0.043222947702830083 2004 5.460885457463888 2005 4.474315345856766 2006 4.312305869407368 2007 11.800065362021229 2008 2.799775570615438 2009 -7.039735262457029 2010 26.76774767219277 2011 -5.733364872127737 2012 4.158495836527834 2013 4.271729786180089 2014 -1.247841497244778 2015 -4.65484312019143 2016 0.5312990919976528 2017 4.828964498056834 2018 4.596508361913408 2019 -4.221273908095668 2020 -20.039571865144737 2021 11.927078175305539 2022 17.333221157216798 2023 9.735811423230928