Year	SPI (scale 0-100)
2005	48.075
2006	49.36875
2007	49.7625
2008	49.625
2009	52.18125
2010	52.59375
2011	55.81875
2012	57.025
2013	56.5
2014	58.91875
2015	63.5375
2016	62.19375
2017	62.89375
2018	62.775
2019	55.65625
2020	61.5625
2021	67.79375
2022	67.79375