Year	SPI (scale 0-100)
2004	20
2005	40
2006	30
2007	30
2008	30
2009	30
2010	60
2011	50
2012	50
2013	50
2014	50
2015	70
2016	83.4
2017	90
2018	90
2019	90
2020	90
2021	90
2022	90