Year SPI (scale 0-100) 2005 53.73125 2006 60.7 2007 62.86875 2008 63.5875 2009 64.75625 2010 66.99375 2011 64.84375 2012 64.84375 2013 64.35625 2014 61.01875 2015 58.8875 2016 59.45625 2017 58.93125 2018 64.125 2019 64.23125 2020 72.23125 2021 82.55625 2022 82.55625