Year	SPI (scale 0-100)
2005	54.6
2006	54.85
2007	54.29375
2008	54.0875
2009	54.78125
2010	48.13125
2011	48.4625
2012	54.85625
2013	55.20625
2014	55.64375
2015	57.7125
2016	59.4125
2017	54.78125
2018	55.05625
2019	53.5625
2020	63.43125
2021	75.4625
2022	75.4625