Year	SPI (scale 0-100)
2005	54.23125
2006	55.3125
2007	54.975
2008	54.8375
2009	55.26875
2010	51.18125
2011	51.35625
2012	53.44375
2013	54.60625
2014	55.05
2015	52.44375
2016	53.56875
2017	52.575
2018	51.16875
2019	52.8375
2020	62.05
2021	68.3875
2022	68.3875