Year	SPI (scale 0-100)
2004	20
2005	20
2006	20
2007	30
2008	30
2009	30
2010	30
2011	50
2012	50
2013	40
2014	50
2015	70
2016	90
2017	90
2018	76.6
2019	76.6
2020	76.6
2021	76.6
2022	90