Year	SPI (scale 0-100)
2005	51.06875
2006	51.8625
2007	53.25625
2008	54.01875
2009	55.3375
2010	57.3875
2011	59.34375
2012	61.3875
2013	60.98125
2014	62.1125
2015	66.46875
2016	70.23125
2017	76.63125
2018	76.675
2019	76.28125
2020	78.99375
2021	87.075
2022	87.075