Year	SPI (scale 0-100)
2005	44.08125
2006	47.7625
2007	64.51875
2008	64.9875
2009	64.2875
2010	61.875
2011	60.41875
2012	63.2625
2013	62.34375
2014	61.53125
2015	57.30625
2016	55.1625
2017	49.075
2018	60.33125
2019	61.95
2020	71.53125
2021	78.29375
2022	78.29375