Year	SPI (scale 0-100)
2005	59.55625
2006	59.79375
2007	60.85
2008	60.5
2009	61.2
2010	58.25625
2011	60.41875
2012	62.34375
2013	63.35625
2014	63.0125
2015	68.4375
2016	72.2125
2017	70.46875
2018	69.5625
2019	68.975
2020	79.53125
2021	85.83125
2022	85.83125