"Figure 1: The unexplained infant mortality rate has generally decreased since reporting began in 2004","" "All unexplained infant mortality rate, England and Wales, 2004 to 2020p","" "","" "Notes","" "Unit","Death per 1000 live births (rate)" "","" "","Sudden Infant deaths","Unascertained infant deaths","Unexplained infant deaths" "2004","0.32","0.17","0.50" "2005","0.35","0.16","0.50" "2006","0.27","0.15","0.43" "2007","0.29","0.11","0.40" "2008","0.26","0.14","0.40" "2009","0.26","0.14","0.40" "2010","0.22","0.14","0.36" "2011","0.23","0.11","0.34" "2012","0.22","0.10","0.32" "2013","0.24","0.12","0.36" "2014","0.19","0.13","0.31" "2015","0.17","0.11","0.28" "2016","0.17","0.16","0.32" "2017","0.16","0.12","0.28" "2018","0.17","0.15","0.32" "2019","0.16","0.13","0.29" "2020p","0.13","0.12","0.24"