Year SPI (scale 0-100) 2005 64.0625 2006 66.775 2007 68.69375 2008 68.4875 2009 70.775 2010 64.3625 2011 62.075 2012 63.00625 2013 61.7875 2014 67.95625 2015 66.09375 2016 68.775 2017 69.38125 2018 68.55625 2019 61.43125 2020 66.1875 2021 76.6 2022 76.6