Year	SPI (scale 0-100)
2005	39.825
2006	40.3625
2007	40.1375
2008	40.80625
2009	40.66875
2010	38.225
2011	37.51875
2012	37.51875
2013	36.1125
2014	34.04375
2015	35.4
2016	36.65
2017	41.3
2018	41.25
2019	43.09375
2020	50.675
2021	51.60625
2022	51.60625