Year annual % 1981 -2.1395719861818776 1982 -0.017719099620535417 1983 -0.016755171636489763 1984 -0.028360257643782916 1985 0.35122234783788997 1986 -2.417300428815878 1987 -0.0003060929208373864 1988 -0.0005785792721866301 1989 0.0036791601611128044 1990 -0.43136881260591053 1991 35.51424695758294 1992 232.9846588669564 1993 125.65081421981691 1994 35.8424752083078 1995 9.970662678668702 1996 38.17205819948143 1997 11.239644480212462 1998 6.730859905075775 1999 2.102849988869025 2000 5.647471467993796 2001 3.810857374088684 2002 3.6474762708811994 2003 5.198635303076827 2004 3.1523689253702543 2005 3.306818146899545 2006 2.4781888868876933 2007 4.386709383343799 2008 4.117085425593942 2009 2.418336058908352 2010 4.493143200318912 2011 2.314743796997945 2012 1.0427146064340747 2013 0.2887459641277559 2014 1.5499170698627154 2015 0.563991350160876 2016 -0.6326534190955471 2017 1.4507315812451367 2018 1.4729534874819592 2019 1.2570248287632921 2020 0.696542442312051 2021 3.454431989730125 2022 9.866013431082152 2023 4.553082811339948