Year annual % 1971 3.8415435739376704 1972 7.110765651074203 1973 6.6152335417713175 1974 3.9577006545725055 1975 0.7053747009277487 1976 4.489868540402824 1977 0.4606969800166496 1978 -0.06653278746290425 1979 0.41066323995515575 1980 1.2494814099155178 1981 -1.7003881321821552 1982 -0.5587344584544525 1983 -0.0990526086655592 1984 -0.6126787541975318 1985 1.9134442673953487 1986 3.0942649630773644 1987 5.67787244842431 1988 4.6691676126732204 1989 5.2614798384672525 1990 3.4051504837650413 1991 2.625215592316053 1992 1.6743312050733152 1993 -2.410001642688343 1994 0.6043431612468169 1995 1.2656334679902272 1996 2.0252705603878383 1997 2.3988214916737434 1998 3.9772537437492588 1999 4.374246898301749 2000 3.970447832498138 2001 3.1572926860241637 2002 1.6305975744836303 2003 0.5313545187752595 2004 2.277131484209093 2005 2.3887905312519564 2006 2.241912564682778 2007 1.498020637847901 2008 -2.2735985318189478 2009 -4.442847727082551 2010 -0.09170095779596465 2011 -2.807940376436349 2012 -3.381023658602672 2013 -2.5688285420214214 2014 1.9938222619538095 2015 3.0274492566367854 2016 2.606857520045409 2017 2.7825974486387395 2018 1.2503284145396947 2019 0.35887869797181793 2020 -12.686760837489587 2021 6.950800658187134 2022 3.912141570098825 2023 0.5259008106476273