Year	SPI (scale 0-100)
2005	52.725
2006	51.89375
2007	52.5875
2008	52.16875
2009	52.79375
2010	51.14375
2011	51.7
2012	53.21875
2013	53.59375
2014	54.725
2015	59.18125
2016	60.4125
2017	65.16875
2018	64.1375
2019	62.225
2020	66.175
2021	81.25625
2022	81.25625