| Year | Value | | 2022 | -261.80209508373 | | 2021 | -285.37782394559 | | 2020 | -273.07915936039 | | 2019 | -272.93163518638 | | 2018 | -286.42023899151 | | 2017 | -278.23586297328 | | 2016 | -307.15743751043 | | 2015 | -311.372702565 | | 2014 | -312.69972836122 | | 2013 | -326.52806540155 | | 2012 | -326.99964478216 | | 2011 | -377.98020378131 | | 2010 | -457.06932981049 | | 2009 | -425.3207520381 | | 2008 | -326.67337487615 | | 2007 | -323.14754773693 | | 2006 | -182.88922536622 | | 2005 | -93.951693227092 | | 2004 | -55.178725518396 | | 2003 | -61.706348426937 | | 2002 | -71.888583139141 | | 2001 | -68.858086001402 | | 2000 | -65.862620855295 | | 1999 | -72.323465401054 | | 1998 | -33.571435829176 | | 1997 | -23.1427239416 | | 1996 | -21.13406566606 | | 1995 | -15.161914773381 | | 1994 | 1.886585375695 | | 1993 | -1.7221528888576 | | 1992 | 3.9842959357662 | | 1991 | 16.273306459332 | | 1990 | 12.230551668325 |
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