Year SPI (scale 0-100) 2004 30 2005 30 2006 30 2007 30 2008 20 2009 20 2010 60 2011 50 2012 50 2013 50 2014 30 2015 80 2016 90 2017 90 2018 90 2019 90 2020 90 2021 90 2022 90