Year SPI (scale 0-100) 2004 20 2005 20 2006 20 2007 20 2008 20 2009 20 2010 20 2011 20 2012 20 2013 0 2014 0 2015 20 2016 26.6 2017 46.6 2018 46.6 2019 46.6 2020 46.6 2021 46.6 2022 60