Year	SPI (scale 0-100)
2004	20
2005	20
2006	20
2007	20
2008	20
2009	20
2010	20
2011	20
2012	20
2013	20
2014	20
2015	40
2016	46.6
2017	60
2018	60
2019	60
2020	46.6
2021	56.6
2022	70