Year	SPI (scale 0-100)
2004	20
2005	20
2006	20
2007	20
2008	20
2009	20
2010	60
2011	50
2012	50
2013	50
2014	60
2015	80
2016	83.4
2017	83.4
2018	83.4
2019	76.6
2020	90
2021	80
2022	80