Year Persons (Millions) 2002 18.707 2003 19.477 2004 20.237 2005 20.947 2006 21.596 2007 22.426 2008 22.997 2009 23.596 2010 24.269 2011 25.031 2012 25.864 2013 26.736 2014 27.601 2015 28.425 2016 29.200 2017 29.700 2018 31.600 2019 32.200 2020 32.941 2021 33.698 2022 34.263