Year	SPI (scale 0-100)
2005	57.69375
2006	58.875
2007	59.01875
2008	60.45625
2009	59.36875
2010	58.23125
2011	59.29375
2012	59.55625
2013	60.2625
2014	59.88125
2015	73.9875
2016	78.41875
2017	79.36875
2018	77.98125
2019	75.075
2020	83.1875
2021	87.58125
2022	87.58125