Year annual % growth 1961 0.5337018366067241 1962 23.551701450637637 1963 9.773455633134162 1964 7.516996002295301 1965 -12.376491320773951 1966 14.433037997466357 1967 2.38061795459042 1968 1.5004240173487062 1969 7.066084605791588 1970 16.808943640122067 1971 3.612962670822938 1972 4.055904343203082 1973 9.940731816992127 1974 9.115323367654199 1975 4.135526095758408 1976 3.273349606058602 1977 6.052165147371213 1978 0.7069565066557573 1979 -0.8654314397324612 1980 20.257771417370236 1981 2.139048245925281 1982 4.030103879906605 1983 2.743122591867376 1984 2.111753682794884 1985 -1.1683090222865502 1986 4.533602940029269 1987 8.603402614821292 1988 7.038106424075963 1989 5.658134305774823 1990 -8.081566786296463 1991 3.688933190906269 1992 13.343676408344152 1993 4.77202458367114 1994 0.6875222643550956 1995 5.285830537725971 1996 3.8796468293191566 1997 8.305628577262752 1998 3.5020415102769817 1999 5.837095936267062 2000 3.4791776861169836 2001 2.4296859168212848 2002 4.309223841947187 2003 -3.2894023172716373 2004 3.101683728883671 2005 12.31592380974395 2006 9.24643104907878 2007 6.223494541292496 2008 5.131951068825984 2009 5.492389578345609 2010 6.622025494760649 2011 3.511836466024846 2012 2.4076725846431657 2013 2.6953336606705562 2014 5.182934505113508 2015 6.495879910724838 2016 5.517877806693079 2017 3.9007735868625417 2018 5.290075207616724 2019 4.861124225795095 2020 -2.208717964048489 2021 5.59602574752769 2022 4.930868803730746 2023 2.4882014667091994