Year	SPI (scale 0-100)
2005	54.3125
2006	55.8375
2007	59.79375
2008	59.5875
2009	62.7125
2010	60.9875
2011	61.8375
2012	60.41875
2013	59.63125
2014	58.525
2015	62.75
2016	67.35625
2017	67.46875
2018	67.16875
2019	63.69375
2020	70.4875
2021	71.69375
2022	71.69375