Year annual % 1990 15.5018483856034 1991 47.6556598595665 1992 97.4338199086854 1993 24.7430178138061 1994 7.87371706042556 1995 10.6790055674445 1996 1.73810973618646 1997 11.5467672117432 1998 4.0179182645085 1999 0.812850465455782 2000 -2.08798314732812 2001 -1.52515154552069 2002 4.92118791987299 2003 1.58125248896708 2004 -1.2346616322255 2005 -1.06220705635945 2006 0.880737586375261 2007 3.13292372272159 2008 7.53328390625055 2009 10.2845410020847 2010 0.578606723263135 2011 2.96508062083976 2012 7.48605187549234 2013 2.57845109226618 2014 0.105278623259466 2015 3.33578444902192 2016 0.87129520217637 2017 2.7485363221939 2018 5.52248710107466 2019 4.09482315573024 2020 85.5420423400206 2021 150.000716803737 2022 112.149478998819 2023 168.94847773506