Year SPI (scale 0-100) 2005 40.60625 2006 43.64375 2007 54.9875 2008 56.4375 2009 56.4375 2010 54.775 2011 55.925 2012 60.025 2013 62.93125 2014 62.31875 2015 59.0625 2016 59.74375 2017 62.65625 2018 64.6875 2019 64.91875 2020 78.09375 2021 89.3875 2022 89.3875