Year	SPI (scale 0-100)
2005	57.225
2006	59.64375
2007	60
2008	63.70625
2009	65.99375
2010	62.13125
2011	61.7
2012	67.5125
2013	63.61875
2014	64.79375
2015	63.7125
2016	71.975
2017	70.85
2018	69.325
2019	68.475
2020	74.6875
2021	79.1375
2022	79.1375