Year SPI (scale 0-100) 2004 20 2005 20 2006 20 2007 20 2008 20 2009 20 2010 20 2011 20 2012 50 2013 50 2014 50 2015 70 2016 70 2017 53.4 2018 53.4 2019 60 2020 60 2021 70 2022 70