Year	SPI (scale 0-100)
2005	53.89375
2006	54.925
2007	57.1875
2008	59.85625
2009	60.55625
2010	56.9
2011	62.325
2012	62.44375
2013	60.36875
2014	57.4625
2015	46.20625
2016	41.26875
2017	44.7375
2018	44.23125
2019	40.225
2020	57.95625
2021	64.1625
2022	64.1625