Year	SPI (scale 0-100)
2005	42.36875
2006	41.7625
2007	41.425
2008	42.06875
2009	41.44375
2010	38.0125
2011	50.1
2012	52.55
2013	51.2125
2014	51.0625
2015	55.6375
2016	49.2
2017	49.625
2018	50.0125
2019	51.65625
2020	64.3375
2021	66.24375
2022	66.24375