Year	SPI (scale 0-100)
2005	42.2
2006	41.40625
2007	41.40625
2008	40.75625
2009	41.38125
2010	41.44375
2011	43.49375
2012	47.8875
2013	47.50625
2014	48.475
2015	52.8875
2016	54.75
2017	60.48125
2018	61.10625
2019	59.7
2020	67.25
2021	76.30625
2022	76.30625