Year	Number
2004	0.737520694732666
2005	1.15323007106781
2006	1.01727342605591
2007	0.972128868103027
2008	0.967198193073273
2009	1.25234353542328
2010	1.28188371658325
2011	1.27358782291412
2012	1.2846497297287
2013	1.27805924415588
2014	1.27684950828552
2015	1.27396094799042
2016	1.27936410903931
2017	1.29554915428162
2018	1.28269290924072
2019	1.26255750656128
2020	1.28214299678802
2021	1.01864099502563
2022	1.00918197631836