Year SPI (scale 0-100) 2004 40 2005 40 2006 40 2007 40 2008 40 2009 40 2010 60 2011 60 2012 60 2013 60 2014 60 2015 80 2016 80 2017 93.4 2018 93.4 2019 93.4 2020 93.4 2021 93.4 2022 93.4