Year	SPI (scale 0-100)
2005	17.95
2006	17.15
2007	17.15
2008	17.09375
2009	17.15
2010	16.54375
2011	16.50625
2012	16.175
2013	16.175
2014	16.00625
2015	15.50625
2016	16.1
2017	16.85
2018	17.3
2019	17.10625
2020	24.25
2021	28.60625
2022	28.60625