Year	SPI (scale 0-100)
2005	19.21875
2006	18.7625
2007	20.0125
2008	19.9
2009	20.59375
2010	21.8
2011	21.3
2012	20.81875
2013	20.1875
2014	20.8
2015	23.19375
2016	23.1625
2017	23.06875
2018	24.2625
2019	24.1625
2020	31.34375
2021	38.26875
2022	38.26875