Year	SPI (scale 0-100)
2005	40.55
2006	40.49375
2007	54.5125
2008	55.26875
2009	55.26875
2010	50.7625
2011	50.9375
2012	48.4625
2013	52
2014	52.0625
2015	53.70625
2016	55.75
2017	58.23125
2018	53
2019	47.45625
2020	57.3
2021	65.8125
2022	65.8125