Year	SPI (scale 0-100)
2005	68.15
2006	69.525
2007	70.61875
2008	71.3125
2009	70.53125
2010	66.13125
2011	68.49375
2012	68.49375
2013	69.4625
2014	71.48125
2015	67.89375
2016	70.61875
2017	77.675
2018	78.63125
2019	77.33125
2020	84.00625
2021	90.925
2022	90.925
