Year annual % 1976 9.862151919521882 1977 11.2657936370698 1978 8.93375884095014 1979 11.34599319488495 1980 16.7531356897102 1981 12.9746974698193 1982 10.2588088556284 1983 10.6719367588934 1984 10.45503482319 1985 8.50837434391595 1986 9.32546190007652 1987 8.43173982070687 1988 8.98300338208989 1989 9.57738525806132 1990 11.02492595310235 1991 13.22426577265065 1992 10.0561167448841 1993 10.5178384472896 1994 13.395250659503251 1995 10.512546081579 1996 9.22046662376986 1997 7.12532722513057 1998 7.67322895675083 1999 4.861922674900975 2000 4.1992882562281 2001 5.253053033862975 2002 4.26870932309104 2003 4.7215533660534 2004 4.68840884843143 2005 5.042794859784295 2006 5.5649377040842 2007 6.17780683499409 2008 10.1547846489023 2009 3.9447591085763953 2010 4.15672722680174 2011 5.801455370853 2012 4.541769677611326 2013 4.59787897363127 2014 3.561794363819935 2015 3.14341696227424 2016 2.7315121601702197 2017 3.44637335032669 2018 3.35102208952149 2019 2.701211200143565 2020 2.7461507821377698 2021 4.120815965265635 2022 8.27477490232654 2023 6.0739085322053