Year	SPI (scale 0-100)
2005	44.91875
2006	45.1375
2007	45.025
2008	46.05625
2009	46.05625
2010	46.11875
2011	47.5125
2012	49.18125
2013	48.78125
2014	50.75
2015	54.0125
2016	66.23125
2017	70.175
2018	70.85625
2019	69.61875
2020	73.90625
2021	79.50625
2022	79.50625