Year SPI (scale 0-100) 2005 46.88125 2006 48.3 2007 47.74375 2008 47.575 2009 49.66875 2010 46.7375 2011 51.5375 2012 51.5375 2013 50.4 2014 49.75 2015 54.48125 2016 51.31875 2017 52.30625 2018 51.69375 2019 51.14375 2020 65.56875 2021 74.55 2022 74.55