Year	SPI (scale 0-100)
2005	57.91875
2006	59.73125
2007	60.06875
2008	64.65625
2009	63.9875
2010	59.49375
2011	60.31875
2012	62.35
2013	59.60625
2014	59.2
2015	58.43125
2016	59.75625
2017	59.225
2018	54.80625
2019	52.9375
2020	69.01875
2021	75.44375
2022	75.44375