Year	SPI (scale 0-100)
2005	54.2375
2006	56.6125
2007	61.0625
2008	64.7875
2009	64.93125
2010	65.31875
2011	64.49375
2012	60.49375
2013	59.76875
2014	61.43125
2015	67.2125
2016	67.6875
2017	71.99375
2018	72.9375
2019	70.4625
2020	74.325
2021	86.70625
2022	86.70625