Year	SPI (scale 0-100)
2005	43.48125
2006	42.3375
2007	43.7375
2008	43.7125
2009	44.29375
2010	44.49375
2011	45.60625
2012	48.16875
2013	52.25
2014	53.03125
2015	63.375
2016	66.85625
2017	73.6625
2018	72.98125
2019	70.5375
2020	71.74375
2021	86.8375
2022	86.8375