Year	SPI (scale 0-100)
2005	58.16875
2006	63.95
2007	63.725
2008	64.9125
2009	68.1875
2010	66.575
2011	65.54375
2012	66.4125
2013	66.075
2014	66.5125
2015	63.84375
2016	70.93125
2017	78.25
2018	77.825
2019	74.7875
2020	80.89375
2021	81.55
2022	81.55