Year	SPI (scale 0-100)
2005	43.01875
2006	47.06875
2007	47.06875
2008	46.9
2009	47.5125
2010	43.31875
2011	47.94375
2012	49.81875
2013	49.48125
2014	48.88125
2015	52.53125
2016	50.98125
2017	60.9125
2018	61.175
2019	70.2375
2020	75.5125
2021	87.9625
2022	87.9625