Year SPI (scale 0-100) 2004 30 2005 30 2006 30 2007 30 2008 20 2009 20 2010 40 2011 60 2012 60 2013 60 2014 60 2015 80 2016 100 2017 100 2018 100 2019 100 2020 100 2021 100 2022 100