Year annual % growth 1961 1.558363691644459 1962 1.926066644817979 1963 5.464373061240963 1964 9.42082716849049 1965 1.7201525621598108 1966 3.973028864712248 1967 5.001370765055498 1968 0.6820279635887374 1969 2.705535204929774 1970 5.632605196242153 1971 2.049490410997919 1972 -0.3729061537510745 1973 5.732471941334197 1974 2.873240040656981 1975 4.142074509915801 1976 0.2439999269581108 1977 2.370709421553954 1978 1.747313834470134 1979 0.05000229486995522 1980 3.443311538801126 1981 5.0429212130409695 1982 4.941162667127742 1983 5.269348826511958 1984 6.5347256286320885 1985 2.2323856561908997 1986 1.9620630250558548 1987 2.5541739883385475 1988 5.702601525164468 1989 2.3147436931622707 1990 4.551459744812078 1991 0.6591286262063392 1992 3.523737722768942 1993 0.9917853781504817 1994 2.711276535338712 1995 2.0889495292554727 1996 4.997001970756656 1997 1.087055050602828 1998 2.4638704806324796 1999 2.725982968795691 2000 2.085296469066037 2001 3.559532189336423 2002 1.4582186559558608 2003 3.9735186335141464 2004 3.974398608239497 2005 4.278887144472662 2006 4.109993479071576 2007 2.9246740319185847 2008 3.0952317655387844 2009 1.8287517511641198 2010 4.629114818529729 2011 5.0239492470765015 2012 2.35745204804698 2013 4.75612387759557 2014 2.87864650430582 2015 2.6685381798249352 2016 2.7348351911071376 2017 4.606969250371378 2018 2.7394906486240416 2019 3.6112083753744457 2020 2.731804083634742 2021 4.492441915678015 2022 2.898107583039433 2023 2.8521869570447933