Year	SPI (scale 0-100)
2005	66.33125
2006	67.5125
2007	69.95
2008	71.1875
2009	73.125
2010	68.36875
2011	68.025
2012	70.9375
2013	69.29375
2014	68.39375
2015	64.7375
2016	68.51875
2017	70.6375
2018	76.84375
2019	76.43125
2020	82.51875
2021	87.74375
2022	87.74375