Year annual % 1971 5.288858196057177 1972 4.883104487139491 1973 2.5479014170335574 1974 -0.22042733670323855 1975 4.1166145319922975 1976 4.735981178201868 1977 4.488343479298365 1978 3.67716706423964 1979 3.2164303441198 1980 1.2993080118703517 1981 -0.5241845939244882 1982 -0.911601115374296 1983 1.672988734575597 1984 2.3054979720842113 1985 2.079968856420038 1986 3.7748585318624777 1987 3.4035245307317155 1988 2.2573369004510084 1989 2.2433442923772873 1990 3.3256584489358687 1991 3.6047196114849243 1992 2.149168105682847 1993 -0.5814917514463929 1994 1.0581859137382708 1995 1.2501977922199927 1996 1.3029665670172506 1997 0.5971225859369866 1998 1.4272851614014002 1999 2.5351620404335335 2000 1.5076893654033796 2001 1.0272424086376475 2002 -1.5460363652082236 2003 0.36654733676928686 2004 0.6634442923558908 2005 0.8156331380708508 2006 1.456144955026062 2007 -0.10332251745103349 2008 0.525444317405757 2009 0.16745602672554583 2010 0.8647694627716476 2011 3.754478849418547 2012 1.310158256581758 2013 0.08831817634231243 2014 0.6302990441748477 2015 1.0581383368885753 2016 1.6164136483438796 2017 1.037155544617491 2018 1.1970069655421867 2019 1.3548555385166452 2020 -5.930128383756497 2021 1.4543213390754204 2022 3.1711236377319523 2023 -1.527996694259386