Year % of population 2000 56.5062298278567 2001 57.7750572442872 2002 59.0500581249144 2003 60.3312336225954 2004 61.6181743211743 2005 62.9117102762344 2006 64.2114185120741 2007 65.5172990344674 2008 66.8293498168938 2009 68.1475750482174 2010 69.4719693561623 2011 70.8022224486628 2012 72.1454574361497 2013 73.4998081947807 2014 74.8649018101603 2015 76.2394931599553 2016 77.6228562087016 2017 79.0139647356572 2018 80.4115904874603 2019 81.8151109661329 2020 81.8524176009632 2021 81.8940783642255 2022 81.9399075495213