Year	SPI (scale 0-100)
2005	67.2125
2006	66.5625
2007	68.0375
2008	70.825
2009	72.15
2010	69.08125
2011	69.475
2012	72.18125
2013	68.95625
2014	75.5
2015	78.8875
2016	79.85625
2017	77.94375
2018	79.175
2019	72.6375
2020	76.5875
2021	83.89375
2022	83.89375