Year annual % 1978 3.9099041823713776 1979 7.597675028406599 1980 8.440121037346927 1981 1.5469033840852546 1982 0.547738044741152 1983 1.186720469552455 1984 8.865807457356738 1985 8.550068267341572 1986 10.856993849032875 1987 6.550345228376514 1988 9.225374975650922 1989 5.479794076733754 1990 4.877251516039593 1991 -1.864689128916126 1992 4.268973825429853 1993 6.801949416015461 1994 5.301719051178154 1995 5.383142657016123 1996 5.842838025859848 1997 6.823966776073419 1998 -0.4867457791851564 1999 3.2198864218145644 2000 10.042808415172956 2001 5.253449830108863 2002 1.3677150725363276 2003 -3.9333948603293862 2004 3.9963466612543073 2005 9.732820702980163 2006 3.1503811996822293 2007 0.6006023265437506 2008 11.178527968372393 2009 -3.3793061134133353 2010 0.043977654097162144 2011 1.6166073042368794 2012 -0.5257623554153525 2013 5.709822978132578 2014 7.365561708034221 2015 0.6941355278766252 2016 3.9327031927328164 2017 0.22094114729999603 2018 2.003525498009722 2019 2.831267378706386 2020 -15.354451759096634 2021 0.47967835675331116 2022 10.522849275993892 2023 3.431152293430003