Year	SPI (scale 0-100)
2005	46.6625
2006	46.55625
2007	46.8125
2008	47.0875
2009	47.0875
2010	48.05
2011	47.61875
2012	49.13125
2013	47.8375
2014	49.05
2015	62.4375
2016	70.89375
2017	75.6
2018	75.59375
2019	74.3
2020	78.375
2021	86.2125
2022	86.2125