Year	SPI (scale 0-100)
2004	30
2005	30
2006	20
2007	20
2008	20
2009	40
2010	40
2011	50
2012	50
2013	50
2014	50
2015	60
2016	80
2017	60
2018	80
2019	80
2020	80
2021	80
2022	80