Year	SPI (scale 0-100)
2005	59.50625
2006	59.74375
2007	62.75
2008	65.2625
2009	63.95
2010	64.375
2011	69.23125
2012	68.15
2013	65.15
2014	66.4125
2015	67.33125
2016	70.44375
2017	70.88125
2018	69.99375
2019	68.5625
2020	69.9
2021	71.33125
2022	71.33125