Year	SPI (scale 0-100)
2004	20
2005	20
2006	20
2007	20
2008	20
2009	20
2010	20
2011	30
2012	30
2013	30
2014	30
2015	50
2016	46.6
2017	60
2018	56.6
2019	56.6
2020	70
2021	70
2022	63.4