Year % of population 1993 31.575130345268207 1994 32.6096921963953 1995 33.60566797486909 1996 32.6293222407454 1997 32.46179667911799 1998 33.45862992357745 1999 34.810428466021946 2000 34.14321021357732 2001 35.22708588650589 2002 35.70060028190328 2003 39.821304185931155 2004 37.49258289014526 2005 37.78421992824724 2006 39.83082972627865 2007 40.74367027308008 2008 41.74130531328957 2009 41.88155925846137 2010 41.838161776129695 2011 45.91489492388976 2012 44.04990000809426 2013 47.05847596399519 2014 47.66253648664463 2015 46.758739058388635 2016 50.906114634764045 2017 48.789457473528046 2018 51.21105494047089 2019 51.16808265510646 2020 51.73089906850718 2021 54.224724307903955 2022 55.43757725411007