Year	Number
1996	0.798747360706329
1998	0.778700530529022
2000	0.830339729785919
2002	0.920009970664978
2003	0.800298810005188
2004	0.909604072570801
2005	0.974222898483276
2006	0.837951719760895
2007	1.01054978370667
2008	0.860504567623138
2009	0.99423885345459
2010	1.00820755958557
2011	1.02559030056
2012	0.984835565090179
2013	0.945151507854462
2014	1.00609910488129
2015	0.902760028839111
2016	1.12751078605652
2017	1.13014113903046
2018	1.199627161026
2019	1.15671002864838
2020	1.14733135700226
2021	1.09629344940186
2022	1.15970313549042