Year SPI (scale 0-100) 2005 60.94375 2006 62.13125 2007 63.9875 2008 64.8 2009 69.53125 2010 66.90625 2011 67.2375 2012 71.19375 2013 71.125 2014 69.06875 2015 65.48125 2016 67.58125 2017 68.9125 2018 75.63125 2019 74.8875 2020 80.04375 2021 90.2125 2022 90.2125