Year % (national estimate) 1992 58.9505325169614 1993 61.68737227188632 1995 57.76987882668939 1996 57.22776460972042 1997 58.12205551459816 1998 58.04384773394824 1999 57.91505296558332 2001 58.48710029853533 2002 58.39928887756157 2003 58.16258077701443 2004 59.404518140948966 2005 59.54740443072111 2006 60.73631267833602 2007 59.981360738531066 2008 60.588883847682496 2009 60.018316835117794 2011 60.01821517444236 2012 59.84102430087628 2013 59.787698974843615 2014 59.59019689988555 2015 59.61250820098838 2016 58.731970218728286 2017 58.59439227525496 2018 58.607325120092625 2019 58.850657566698374 2020 53.53804475699799 2021 56.58777989756576 2022 58.795434357397795 2023 58.8070108597226