Year annual % growth 1961 3.9449629561496806 1962 5.628066277548058 1963 6.379808956463307 1964 6.054864487225558 1965 5.561597017316274 1966 6.077998527585464 1967 2.0810210864258494 1968 2.7453112271950175 1969 3.2341269829831134 1970 4.228671174547614 1971 2.892503867379432 1972 2.7792965199147375 1973 2.039187871304307 1974 -1.3902163530824225 1975 -0.3244608935056448 1976 13.441090109597155 1977 2.4476051677943644 1978 -1.1062598124295278 1979 -5.536126198961014 1980 11.240243544893062 1981 -0.6629083940457292 1982 2.4758736642842507 1983 8.374180185804647 1984 6.414829915454945 1985 4.932654893989067 1986 4.073250041958971 1987 4.001534835559028 1988 4.846796657229419 1989 4.553666313066955 1990 4.474767495060121 1991 4.008269485177962 1992 3.2855505926532516 1993 3.0049504982369086 1994 4.216850098910214 1995 3.3286602322976506 1996 3.9890744481544687 1997 4.206008586633374 1998 3.964711992061325 1999 4.502346012839851 2000 5.000955289821604 2001 3.9817794439649816 2002 2.0007447876272693 2003 2.325581395092513 2004 2.097902097952314 2005 4.828767124280063 2006 6.435805292198509 2007 6.936771024752829 2008 5.73071216686796 2009 5.665672688335448 2010 4.116865870130695 2011 5.532525510867842 2012 6.481341591620875 2013 3.3365391739952344 2014 4.395761740374255 2015 3.079138663457954 2016 4.650389195497979 2017 4.18944691681105 2018 1.1407689876590013 2019 1.5520437323672382 2020 7.363177923546843 2021 6.2015013111257815 2022 2.7727310627534223 2023 3.810377329336518