Year SPI (scale 0-100) 2005 61.58125 2006 65.46875 2007 65.91875 2008 66.98125 2009 67.675 2010 64.73125 2011 64.19375 2012 63.925 2013 67.54375 2014 67.56875 2015 63.3375 2016 63.0625 2017 69.0625 2018 65.0375 2019 65.99375 2020 75.9375 2021 89.075 2022 89.075