Year	SPI (scale 0-100)
2005	61.5625
2006	61.325
2007	62.8
2008	62.6625
2009	60.23125
2010	59.90625
2011	60.675
2012	62.70625
2013	64.55
2014	65.85
2015	66.04375
2016	72.2875
2017	72.3
2018	68.33125
2019	66.54375
2020	71.73125
2021	80.5875
2022	80.5875