Year	SPI (scale 0-100)
2005	44.825
2006	44.53125
2007	44.7875
2008	45.1375
2009	45.1375
2010	44.94375
2011	45.9
2012	46.79375
2013	47.86875
2014	48.825
2015	59.4125
2016	64.275
2017	71.06875
2018	71.2375
2019	71.0375
2020	73.63125
2021	87.39375
2022	87.39375