Year	SPI (scale 0-100)
2005	48.1
2006	49.325
2007	49.325
2008	54.91875
2009	56.4
2010	55.4
2011	54.9625
2012	58.1375
2013	57.21875
2014	58.71875
2015	56.1375
2016	56.9375
2017	59.84375
2018	59.71875
2019	50.41875
2020	69.6125
2021	78.76875
2022	78.76875