Year	SPI (scale 0-100)
2005	50.46875
2006	50.10625
2007	53.11875
2008	52.9125
2009	66.25
2010	61.7
2011	63.4
2012	61.8375
2013	61.03125
2014	59.6875
2015	58.675
2016	59.2625
2017	60.74375
2018	59.03125
2019	59.59375
2020	67.98125
2021	76.05
2022	76.05