Year	Number
1996	1.04067647457123
1998	1.05622112751007
2000	1.05573093891144
2002	1.02382504940033
2003	1.07111537456512
2004	0.679108440876007
2005	1.08610773086548
2006	1.06227540969849
2007	1.04314303398132
2008	1.06916379928589
2009	1.03036606311798
2010	1.13384974002838
2011	1.02087604999542
2012	1.01553082466125
2013	1.02643799781799
2014	1.15485370159149
2015	0.968789398670197
2016	0.955370128154755
2017	0.944345474243164
2018	0.855020403862
2019	0.89806193113327
2020	0.90775054693222
2021	0.868617177009583
2022	0.846518158912659