Year	SPI (scale 0-100)
2005	57.475
2006	62.3625
2007	62.025
2008	61.9125
2009	62.60625
2010	59.56875
2011	57.63125
2012	67.53125
2013	67.01875
2014	66.2
2015	68.93125
2016	67.90625
2017	63.95625
2018	63.4875
2019	60.8375
2020	73.48125
2021	84.83125
2022	84.83125