Year	SPI (scale 0-100)
2005	37.675
2006	43.75
2007	43.75
2008	47.3625
2009	47.75625
2010	47.26875
2011	47.2625
2012	47.7625
2013	44.15
2014	44.49375
2015	45.84375
2016	46.46875
2017	46.65
2018	48.34375
2019	49.2
2020	57.2
2021	68.75
2022	68.75