Year	SPI (scale 0-100)
2004	20
2005	20
2006	20
2007	30
2008	30
2009	30
2010	40
2011	40
2012	40
2013	30
2014	40
2015	60
2016	80
2017	80
2018	80
2019	80
2020	70
2021	60
2022	60