Year % 1980 -21.53231187397175 1981 2.152199638437537 1982 22.967158356523388 1983 3.4599625436935306 1984 8.769773034403006 1985 0.8077711466577836 1986 -2.440022223698793 1987 -0.5466319721933853 1988 -5.341751706840959 1989 3.4053818145971726 1990 7.520733240723261 1991 1.844037332154527 1992 3.783612424496485 1993 4.074970385995787 1994 6.016114109718867 1995 3.1542199152539454 1996 11.043456166034616 1997 8.268647946787622 1998 9.224945636949464 1999 10.109239609836406 2000 10.17067376954607 2001 4.558152416044542 2002 2.541936373740551 2003 13.252971992397363 2004 2.5315670638788426 2005 5.469852668794534 2006 2.607098236081391 2007 22.304616800139915 2008 -0.45654282802862783 2009 10.410831910183019 2010 5.587195106381907 2011 0.9163781310968993 2012 7.767625334516242 2013 -0.32634746490958755 2014 -3.2408495453181394 2015 0.3329861111106991 2016 11.903095235413412 2017 9.372696754804483 2018 -0.3301931993823331 2019 7.490316024932933 2020 3.0727624464084253 2021 4.719972430322243 2022 4.843686690077234 2023 11.187866533003012