Year	SPI (scale 0-100)
2005	41.55
2006	41.45625
2007	42.40625
2008	42.05625
2009	43.375
2010	43.79375
2011	44.8125
2012	46.75
2013	46.4125
2014	49.8375
2015	52.55
2016	55.5125
2017	64.0375
2018	63.49375
2019	60.96875
2020	70.55625
2021	82.31875
2022	82.31875