Year	Number
1996	-1.2075936794281
1998	-1.19072878360748
2000	-1.20650112628937
2002	-1.04439079761505
2003	-1.07022738456726
2004	-0.878722608089447
2005	-0.917718350887299
2006	-0.690580487251282
2007	-0.47174859046936
2008	-0.450209558010101
2009	-0.562428534030914
2010	-0.488994628190994
2011	-0.521041929721832
2012	-0.454180359840393
2013	-0.620133638381958
2014	-0.441992610692978
2015	-0.710914850234985
2016	-0.713305473327637
2017	-0.760963618755341
2018	-0.666772186756134
2019	-0.661525189876556
2020	-0.589063823223114
2021	-0.648736000061035
2022	-0.745265185832977