Year SPI (scale 0-100) 2005 60.33125 2006 65.86875 2007 67.4 2008 70.325 2009 73.1 2010 69.8125 2011 69.575 2012 69.575 2013 71.91875 2014 67.59375 2015 68.0625 2016 68.86875 2017 72.21875 2018 75.95625 2019 75.175 2020 78.46875 2021 89.80625 2022 89.80625