Year SPI (scale 0-100) 2004 40 2005 40 2006 40 2007 40 2008 40 2009 40 2010 40 2011 40 2012 50 2013 50 2014 50 2015 80 2016 90 2017 90 2018 90 2019 90 2020 90 2021 90 2022 90