Year	Number
1996	-0.418921560049057
1998	-0.707292854785919
2000	-0.405505001544952
2002	-0.624253511428833
2003	-0.555056512355804
2004	-0.347879618406296
2005	-0.510850071907043
2006	-0.486631006002426
2007	-0.409717261791229
2008	-0.516110599040985
2009	-0.55911248922348
2010	-0.454440265893936
2011	-0.563705265522003
2012	-0.554683208465576
2013	-0.585612416267395
2014	-0.586776256561279
2015	-0.618873357772827
2016	-0.410622745752335
2017	-0.2816202044487
2018	-0.256266981363297
2019	-0.216642439365387
2020	-0.266943335533142
2021	-0.290212571620941
2022	-0.331597328186035