Year	Number
1996	0.338654190301895
1998	0.755532085895538
2000	0.631434977054596
2002	0.403180629014969
2003	0.363324075937271
2004	0.450190424919128
2005	0.351383656263351
2006	0.357532441616058
2007	0.261930704116821
2008	0.126674965023994
2009	0.0628989040851593
2010	-0.0625116676092148
2011	-0.101170934736729
2012	-0.19037801027298
2013	-0.0751005336642265
2014	-0.135704442858696
2015	-0.118774399161339
2016	-0.133906334638596
2017	-0.111620284616947
2018	-0.0557379238307476
2019	0.0140720242634416
2020	0.0320753939449787
2021	0.183452636003494
2022	0.0377966053783894