Year	SPI (scale 0-100)
2005	70.575
2006	74.65
2007	75.53125
2008	75.80625
2009	76.5
2010	72.46875
2011	69.625
2012	74.13125
2013	76.0625
2014	74.4875
2015	70.81875
2016	72.05625
2017	77.84375
2018	78.74375
2019	76.425
2020	82.9375
2021	89.8
2022	89.8