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