Year	SPI (scale 0-100)
2005	31.2375
2006	31.38125
2007	34.9375
2008	47.2625
2009	48.04375
2010	46.325
2011	46.59375
2012	44.3125
2013	32.06875
2014	43.9625
2015	39.78125
2016	39.5375
2017	44.14375
2018	44.21875
2019	38.71875
2020	58.08125
2021	63.95
2022	63.95