Year per 1,000 live births 1990 8.1 1991 7.8 1992 7.6 1993 7.4 1994 7.2 1995 7 1996 6.8 1997 6.6 1998 6.5 1999 6.4 2000 6.3 2001 6.2 2002 6.1 2003 6 2004 6 2005 6 2006 5.9 2007 5.8 2008 5.8 2009 5.6 2010 5.6 2011 5.5 2012 5.4 2013 5.3 2014 5.2 2015 5.2 2016 5.1 2017 5 2018 5 2019 4.9 2020 4.9 2021 4.9 2022 4.8