Year	SPI (scale 0-100)
2005	47.30625
2006	47.45
2007	48.34375
2008	51.20625
2009	51.20625
2010	51.65
2011	52.275
2012	53.05625
2013	51.3625
2014	50.73125
2015	56.79375
2016	58.90625
2017	59.9875
2018	60.43125
2019	59.675
2020	64.9625
2021	77.51875
2022	77.51875