Year annual % 1978 8.826450626120135 1979 15.175006760758365 1980 11.737518248062756 1981 8.643432672497212 1982 11.506719528266117 1983 5.415090077254376 1984 4.200751899433939 1985 7.850844924908259 1986 8.329314160173922 1987 9.326562618516519 1988 12.72883171456536 1989 5.119811091189661 1990 2.098410516557678 1991 3.1065374734776157 1992 2.931233725380551 1993 2.3158536414469353 1994 3.5892410054730703 1995 3.0463687910141033 1996 3.412407659449258 1997 2.530620585584728 1998 2.6815167221076166 1999 2.010847034830519 2000 1.488252206954627 2001 2.0847831653898083 2002 1.2926846571170074 2003 -0.4832441282673585 2004 2.3498233010051734 2005 4.676776804926263 2006 1.1240695673665755 2007 4.373543659102694 2008 4.737371574234416 2009 1.1108250723863193 2010 1.605514289099716 2011 0.6686455120534589 2012 0.19274278560162372 2013 0.476877446195644 2014 1.778392199938807 2015 2.78817037438111 2016 -0.4682013096376778 2017 0.312054499370376 2018 1.4602901229043113 2019 0.7184523114576109 2020 0.800069551909715 2021 4.913760578269461 2022 6.498856195663748 2023 4.805475772746746