Year	Number
1996	-0.840640664100647
1998	-0.853155672550201
2000	-0.818260669708252
2002	-0.758519172668457
2003	-0.641858518123627
2004	-0.604488134384155
2005	-0.59244042634964
2006	-0.551735699176788
2007	-0.398109436035156
2008	-0.389601320028305
2009	-0.46949765086174
2010	-0.518319189548492
2011	-0.410753279924393
2012	-0.291441261768341
2013	-0.31554251909256
2014	-0.347682625055313
2015	-0.368301272392273
2016	-0.426889508962631
2017	-0.567720949649811
2018	-0.678601682186127
2019	-0.673917531967163
2020	-0.733920753002167
2021	-0.759727835655212
2022	-0.529199838638306