Year annual % growth 1961 0.37801597528672914 1962 2.004580046027243 1963 1.2020305582848039 1964 -3.5330422464005267 1965 4.589367829958491 1966 9.16959357752151 1967 10.599793174767228 1968 -1.4336917562723528 1969 8.010540184453149 1970 10.309831666260095 1971 14.738145789101281 1972 5.6168080185039315 1973 13.293426287549835 1974 22.197880086343375 1975 31.474597273853504 1976 -0.34291214630917466 1977 7.103187379265719 1978 2.027204749558905 1979 3.3993186631061434 1980 -4.5525458139656365 1981 2.9447026553530264 1982 7.279430768410933 1983 14.440577854180574 1984 5.378376022263879 1985 1.7114097697959352 1986 -10.130794072098013 1987 -6.1201387554672095 1988 0.7592613545761822 1989 0.2604332197351056 1990 21.299159860491173 1991 8.962416396224441 1992 4.572333679916781 1993 3.1353875979195323 1994 -4.4097831980735975 1995 -6.070792638130612 1996 3.979602092915542 1997 8.367331572540238 1998 2.953184028022804 1999 0.09412858619275255 2000 10.600258178518402 2001 6.1164627016316615 2002 11.089494020401986 2003 1.5160755411301068 2004 8.806943156733965 2005 7.113560851645204 2006 7.559520217418509 2007 12.754250331393749 2008 -3.5748065552871537 2009 2.0693444360632753 2010 4.36665349906437 2011 4.394075022890377 2012 -1.8827514434548789 2013 -0.9958467262351434 2014 0.6608734987486145 2015 -0.37590153332519094 2016 4.3114613037283505 2017 1.5524487413295986 2018 -1.8078189816102679 2019 -4.744985392050651 2020 0.5428721369140135 2021 3.907869290979505 2022 8.679082748093151 2023 3.3000000000004093