Year	Number
2003	1.16978526115417
2004	1.13185334205627
2005	1.0707448720932
2006	1.04072260856628
2007	1.08896553516388
2008	1.01208281517029
2009	1.3850017786026
2010	1.15306556224823
2011	1.06180381774902
2012	1.02640020847321
2013	1.054114818573
2014	0.989585757255554
2015	1.00298595428467
2016	0.83496367931366
2017	1.03458595275879
2018	0.998590290546417
2019	1.1751024723053
2020	0.983442306518555
2021	0.933938026428223
2022	1.05626726150513