Year	Number
1996	-0.719981253147125
1998	-0.682330429553986
2000	-0.636604070663452
2002	-0.628373801708221
2003	-0.648552417755127
2004	-0.42907127737999
2005	-0.711830615997314
2006	-0.667271733283997
2007	-0.542462527751923
2008	-0.303243905305862
2009	-0.367729425430298
2010	-0.402063727378845
2011	-0.421640872955322
2012	-0.470184713602066
2013	-0.549865782260895
2014	-0.596591591835022
2015	-0.697723746299744
2016	-0.689300656318665
2017	-0.671873569488525
2018	-0.742592453956604
2019	-0.880212485790253
2020	-0.752702355384827
2021	-0.804719805717468
2022	-0.793283402919769