Year	SPI (scale 0-100)
2005	58.1875
2006	61.6875
2007	64.2125
2008	67.16875
2009	67.125
2010	67.64375
2011	64.1
2012	66.59375
2013	67.39375
2014	72.5875
2015	71.675
2016	75.1125
2017	75.44375
2018	73.53125
2019	68.78125
2020	72.7625
2021	76.5875
2022	76.5875