Year annual % 1961 4.3066253824500365 1962 6.635904692505235 1963 5.77348480270355 1964 4.611031222567362 1965 7.436469786056946 1966 6.8326587228800975 1967 4.454220748645724 1968 5.632591418100887 1969 7.161901929842145 1970 9.031344577650472 1971 7.445787034675362 1972 9.601149682596471 1973 10.620300797478734 1974 13.266442960571183 1975 13.355808297088686 1976 9.380088488400261 1977 8.875873973288535 1978 8.954735347550113 1979 7.068544932426505 1980 8.810549596614962 1981 10.693957607658604 1982 10.144536191935316 1983 7.385840522041605 1984 5.959390666054503 1985 4.290953963739412 1986 2.315585945753611 1987 4.75468874973275 1988 3.9445790246982426 1989 4.965285147350912 1990 2.602447219240716 1991 2.6594527436405713 1992 1.655911086744652 1993 0.5799178037346735 1994 1.5655023587199537 1995 1.2823906289403766 1996 2.0141836246838807 1997 2.013919571014384 1998 1.2321428593646573 1999 1.6847537246490703 2000 3.01797428833477 2001 2.5184142259246727 2002 2.3476474638624296 2003 1.4818298091791746 2004 2.095733092634177 2005 2.906424049166148 2006 2.0761795716543645 2007 2.432280585235546 2008 4.134692969380666 2009 0.5290222542423351 2010 3.224072873962001 2011 0.6386434676905992 2012 2.375183627510836 2013 0.8881708823604839 2014 1.0321085783132418 2015 0.43306080205209696 2016 0.25459516653126 2017 1.184661611527332 2018 0.7478568381441733 2019 1.0487942442431404 2020 2.9263253117756847 2021 2.8566837004688495 2022 8.066962465882227 2023 -3.477865496030276