Year	SPI (scale 0-100)
2005	49.8375
2006	50.93125
2007	51.33125
2008	52.725
2009	53.03125
2010	53.94375
2011	57.50625
2012	60.00625
2013	59.04375
2014	60.26875
2015	57.1125
2016	57.26875
2017	57.125
2018	56.6875
2019	56.73125
2020	69.28125
2021	76.53125
2022	76.53125