Year annual % 1961 4.014434555515614 1962 0.7154766355446043 1963 4.674475701308367 1964 3.9059776912089745 1965 4.345048352830162 1966 4.95788513775463 1967 0.8057280826201634 1968 2.1927423748959995 1969 4.838560996096547 1970 5.184511806666592 1971 3.4828218791312793 1972 4.467523530212503 1973 7.133196235936694 1974 14.79999760893817 1975 10.295466715831004 1976 8.366865386809685 1977 12.441964560638489 1978 9.143351002461685 1979 10.819882453010116 1980 13.019244409301798 1981 11.49999135276174 1982 10.000018396173928 1983 10.960140815036844 1984 12.244774105520854 1985 9.748440168165374 1986 9.552042062468253 1987 16.092349605338974 1988 9.534039911839066 1989 11.376680396619463 1990 11.911619580988898 1991 10.692314162780491 1992 10.227514252195988 1993 9.989916523762162 1994 23.249480757328172 1995 15.808983897355347 1996 10.92141575027182 1997 4.4919734241551765 1998 6.749408829004338 1999 7.442196772685577 2000 9.853136920417896 2001 4.845441507670067 2002 3.443632474201806 2003 8.803332488472257 2004 10.71062065173335 2005 9.453176058416823 2006 7.330547916290826 2007 7.304727789181619 2008 9.186758961555846 2009 3.117229956299923 2010 5.644330860973355 2011 10.386187135887496 2012 5.823999487959156 2013 4.822785478769859 2014 1.795363949693666 2015 6.503716691516104 2016 4.349228944758792 2017 6.443706287795251 2018 3.7951186208404692 2019 4.677645346748037 2020 3.1716610674050685 2021 5.906707663278226 2022 8.65424272219272 2023 8.951930640777505