Year % (national estimate) 1995 53.84 1996 52.4 1997 49.2 1998 52.4 1999 52.2 2001 52.722 2002 53.897 2003 57.497 2004 54.395 2005 54.113 2006 53.91 2007 53.391 2008 54.148 2009 54.232 2010 54.695 2011 53.98 2012 54.126 2013 55.158 2014 55.254 2015 55.602 2016 55.215 2017 55.397 2018 54.896 2019 55.329 2020 65.351 2021 47.957 2022 51.396