Year	SPI (scale 0-100)
2005	51.9
2006	51.5
2007	51.75
2008	52.09375
2009	53.06875
2010	53.60625
2011	55.60625
2012	58.7125
2013	58.30625
2014	58.9375
2015	63.09375
2016	69.55
2017	74.55
2018	74.78125
2019	74.025
2020	76.125
2021	85.2
2022	85.2