Year	SPI (scale 0-100)
2005	49.1625
2006	50.43125
2007	51.26875
2008	51.04375
2009	53.35625
2010	52.13125
2011	54.28125
2012	53.4625
2013	53.76875
2014	53.3375
2015	47.175
2016	48.35
2017	58.5
2018	57.625
2019	57.2875
2020	66.45
2021	72.30625
2022	72.30625