Year	SPI (scale 0-100)
2005	51.71875
2006	51.2625
2007	50.925
2008	50.75625
2009	50.975
2010	43.10625
2011	48.375
2012	51.25625
2013	50.68125
2014	49.41875
2015	53.46875
2016	52.39375
2017	49.125
2018	48.225
2019	47.8
2020	52.28125
2021	62.59375
2022	62.59375